infectin‧fect /ɪnˈfekt/ ●●○ verb [transitive] 
Word Origin Examples
People with the virus may feel perfectly well, but they can still infect others.infect with the number of people infected with HIV2to make something contain something harmful that gives people a diseasebe infected with something Eggs known to be infected with salmonella were allowed to go on sale.GRAMMAR Infect is usually passive in this meaning.3if a feeling or interest that you have infects other people, it makes them begin to feel the same way or have the same interest: Lucy’s enthusiasm soon infected the rest of the class.4if a virus infects your computer or disk, it changes or destroys the information in or on it
Word OriginWORD ORIGINinfect
Verb TableOrigin:
1300-1400 Latin past participle of inficere ‘to dip in, stain’VERB TABLE
infect
| Simple Form | ||
| Present | I, you, we, they | infect |
| he, she, it | infects | |
| Past | I, you, he, she, it, we, they | infected |
| Present perfect | I, you, we, they | have infected |
| he, she, it | has infected | |
| Past perfect | I, you, he, she, it, we, they | had infected |
| Future | I, you, he, she, it, we, they | will infect |
| Future perfect | I, you, he, she, it, we, they | will have infected |
| Continuous Form | ||
| Present | I | am infecting |
| he, she, it | is infecting | |
| you, we, they | are infecting | |
| Past | I, he, she, it | was infecting |
| you, we, they | were infecting | |
| Present perfect | I, you, we, they | have been infecting |
| he, she, it | has been infecting | |
| Past perfect | I, you, he, she, it, we, they | had been infecting |
| Future | I, you, he, she, it, we, they | will be infecting |
| Future perfect | I, you, he, she, it, we, they | will have been infecting |
EXAMPLES FROM OTHER DICTIONARIES
word sets- The book may infect you with a passion for mountain climbing.
- The fruits were infected by a fungus disease called brown rot.
WORD SETS► Computers
Collocationsaccess, verbaccess point, nounaccess time, nounaccounting system, accumulator, nounadd-on, nounADSL, nounaffective computing, nounAI, nounALGOL, nounalias, nounANSI, anti-spam, adjectiveanti-virus, adjectiveanti-virus software, nounAPL, nounapp, nounApple, Apple Macintosh, applet, nounapplication, nounapplication software, nounarcade game, nounarchitecture, nounarchive, nounarchive, verbarray, nounartificial intelligence, nounASCII, nounASIC, nounASP, nounassembly language, nounasynchronous, adjectiveAT&T, attachment, nounaudit trail, nounautomate, verbautomated, adjectiveautomation, nounavatar, nounB2B exchange, nounB2C, adjectiveB2E, adjectiveBabbage, Charles, backslash, nounbackspace, nounbackup, nounback-up copy, bandwidth, nounbar code, nounBASIC, nounbatch, nounbatch processing, nounbaud rate, nounBerners-Lee, Tim, bespoke, adjectivebeta test, nounBig Blue, bioinformatics, nounbiometric, adjectivebit, nounbitmap, nounBlackBerry, nounbloatware, nounblog, nounBluetooth, nounBMP, nounbond certificate, book entry, bookmark, nounbookmark, verbbook of final entry, nounbook of first entry, nounBoolean, adjectiveboot, verbbootable, adjectivebootstrapping, nounbot, nounbotnet, nounbps, brain dump, nounbroadband, nounbrown goods, nounbrowse, verbbrowser, nounbubble jet printer, nounbuddy list, nounbuffer, nounbuffer, verbbug, nounbulletin board, nounbundle, nounbundle, verbburn, verbbus, nounbusiness continuity services, nounbusiness continuity services, button, nounbyte, nounCabinet Office Briefing Rooms, cable modem, nouncache, nouncache, verbCAD, nounCAD/CAM, nounCAL, nounCalifornia, nounCALL, nounCAM, nounCambridge, Capita, caps lock, nouncapture, verbcapture, nouncard, nouncathode ray tube, nounCAT scan, nounCBT, nounCD-R, nounCD-ROM, nounCD-ROM drive, CDRW, nounCD-RW, nouncentral processing unit, nouncentral processor, nounCGI, nounCHAPS, character, nounchat room, nouncheat, nouncheckbox, nounchip, nounchip card, CIM, CIO, clerical assistant, click, verbclickable, adjectiveclient, nounclient machine, client-server, adjectiveclient/server architecture, clip art, nounclipboard, nouncloaking, nounclock cycle, nounclock speed, nounclone, nouncluster, nounCOBOL, nouncode, nouncoder, nouncom, Comdex, nouncommand, nouncomm port, comms, nouncompact disc, nounCompaq, compatibility, nouncompatible, adjectivecompatible, nouncompile, verbcompiler, nouncompress, verbcomputer, nouncomputer (industry) analyst, computer-aided, adjectivecomputer-aided design, nouncomputer-aided manufacture, computer-aided manufacturing, nouncomputer-assisted, adjectivecomputerate, adjectivecomputer-based training, computer-generated, adjectivecomputer-integrated manufacture, computerize, verbcomputer-literate, adjectivecomputer modelling, nouncomputer science, nouncomputer system, computer virus, nouncomputing, nounconcordance, nounconfiguration, nounconfigure, verbconnect, verbconnectivity, nounconsole, nouncontrol, nouncontrol key, nouncookie, nouncoordinate, nounCorel, corrupt, verbcounter, nouncourseware, nounCPU, nouncrack, verbcrack, nouncracker, nouncrash, verbcrash, nounCroft, Lara, cross-platform, adjectivecross-posting, nounCtrl, nouncursor, nouncut, verbcutover, nouncyber-, prefixcybercrime, nouncybernetics, nouncyberpunk, nouncybersickness, nouncyberspace, nouncyberterrorist, nouncyberwidow, noundata, noundata bank, noundatabase, noundatabase management, database management system, data capture, noundata centre, data dictionary, noundata encryption standard, noundata file, data interchange format file, data mining, noundata processing, noundata protection, Data Protection Act, the, Dateline, daytrader, nounday trading, nounDBMS, debug, verbdecision support system, decode, verbdecompress, verbdecrypt, verbdefault, noundefragment, verbDel, noundelete, verbdeletion, noundeliverable, noundematerialize, verbdemo, verbdemonstration version, denial of service attack, noundeselect, verbdesktop, noundesktop computer, noundesktop publishing, noundestination site, dialogue box, noundial-up, adjectivedigerati, noundigicam, noundigital nervous system, digital rights management, digital wallet, nounDilbert, direct access, noundirectory, noundisaster recovery, noundisc, noundisinfect, verbdisk, noundisk drive, noundiskette, noundisk operating system, display, noundisplay, verbdistributed processing, Dixons, dock, noundock, verbdocking station, noundocument, noundocument sharing, noundongle, nounDOS, noundot-matrix printer, noundouble click, verbdouble-click, verbdouble density, adjectivedown, adverbdownload, verbdownload, noundownloadable, adjectivedowntime, noundown time, downwardly compatible, adjectiveDP, noundrag, verbdrive, noun-driven, suffixdriver, noundropdown, noundrop down, noundrop-down menu, nounDTP, noundumb terminal, dump, verbdump, nounDVD, nounDVD-ROM, nounEasdaq, noune-book, noune-business, nounECN, noune-commerce, nouneditor, nounedutainment, noune-fatigue, nounE-FIT, nounEFTPOS, nounelectronic, adjectiveelectronic bill of lading, electronic cottage, nounelectronic data interchange, nounelectronic funds transfer, nounelectronic invoice, electronic mail, nounelectronic media, electronic publishing, nounelectronics, nounelectrosmog, nounEllison, Larry, email, nounemail account, embed, verbencrypt, verbend-to-end, adjectiveenter, verbenterprise application integration, nounentry, nounEPROM, noune-publishing, nounequipment leasing, erase, verbErnie, error, nounerror message, nounescape key, Ethernet, noune-ticket, nounE-ticket, nounexecutable, nounexecute, verbexecution, nounexit, verbexpansion card, nounexpansion slot, nounexpert system, nounexport, verbextension, nounextranet, nouneye scan, nounF2F, adjectivefabricator, nounfactory preset, nounfatware, nounfeed, verbfeed, nounfield, nounfifth generation computer, file, nounfile manager, nounfilename, nounfile sharing, nounfile transfer, filing system, filter, nounfirewall, nounfirmware, nounfirst generation, nounfirst in, first out, nounfirst-person shooter, nounfive nines, nounfixed wireless, nounflash, verbflash, nounflash drive, nounflash memory, nounflatscreen, adjectiveflat screen, flip chip, nounfloor broker, floppy disk, nounfly-by-wire, nounfolder, nounfont, nounfooter, nounfootprint, nounforklift upgrade, nounformat, verbFortran, nounforum, noun404, adjectivefreeware, nounftp, nounfunction, nounfunctionality, nounfunction key, nounfungible, adjectivefuzzy logic, nounGame Boy, gameplay, noungamer, noungaming, noungarbage in, garbage out, Gates, Bill, gateway, nounghost, nounGIF, noungigabit, noungigabyte, nounGIGO, GIS, nounGlitter, Gary, global, adjectiveGLOBEX, nounGMS, nounGoogle, gopher, noungraphical, adjectivegraphical user interface, noungraphics, noungraphics card, noungraphic software, grid computing, noungroupware, nounGUI, nounhack, verbhack, nounhacker, nounhacktivist, nounhandshake, nounhard copy, nounhard disk, nounhard drive, nounhardware, nounhard-wired, adjectiveHawk, Tony, Hawking, Stephen, head, nounheader, nounhelp, nounhelp desk, nounhelp menu, help screen, nounHewlett Packard, hexadecimal, adjectivehigh-definition, adjectivehigh-level, adjectivehigh-level language, highlight, verbhome computer, home office, nounhome shopping, hookup, nounhook-up, nounhost computer, hot key, nounhot link, nounhot spot, nounHTML, nounhttp, hyperlink, nounhypertext, nounIBM, icon, nounICT, nounidentifier, nouniMac, nounimport, verbinbox, nounincremental backup, nounincubator space, industrial design, infect, verbinfected, adjectiveinformation exchange, information retrieval, nouninformation system, information technology, nouninfowar, nouninitialize, verbinkjet printer, nouninput, nouninput, verbinput/output, adjectiveinstall, verbinstaller, nounInstinet, Intel, intelligent terminal, interactive, adjectiveinteractive whiteboard, nouninterface, nouninterface, verbInternational Securities Exchange, nounInternet cafe, nounInternet Service Provider, interpreter, nounintranet, nouninvoke, verbIP address, nouniPod, nouniris scan, nounISDN, nounISP, nounIT, nouniterate, verbiTunes, iTV, nounJava, nounjob, nounjob bank, Jobs, Steve, joystick, nounJPEG, nounK, KB, keno, nounkey, nounkeyboard, nounkeyboard, verbkeyboarder, nounkeypad, nounkeystroke, nounkeyword, nounkilobyte, nounkit, nounkludge, nounknowledge base, Kraftwerk, LAN, nounlanguage, nounlaptop, nounlaser disk, nounlaser printer, nounlaunch, verbLCD, nounlight industry, nounlight pen, nounline printer, nounlink, verbLinux, nounLISP, nounlisting paper, listserv, nounload, verblocal area network, nounlog file, LOGO, nounloop, nounlow-level, adjectiveMac, nounmachine, nounmachine code, nounmachine language, machine-readable, adjectiveMacintosh, nounmacro, nounmagnetic disk, nounmagnetic media, nounmagnetic tape, nounmail, nounmail, verbmailbomb, nounmailbox, nounmailing list, nounmail merge, nounmainframe, nounmainframe computer, main memory, manual, adjectivemaximize, verbmegabyte, nounmemory, nounmemory address, memory bank, nounmemory card, nounmemory hog, nounMemory Stick, nounmenu, nounmessage, nounmetadata, nounmicro, nounmicrochip, nounmicrocomputer, nounmicroelectronics, nounmicroprocessor, nounMicrosoft, MIDI, nounmigrate, verbmigration, nounMillennium bug, minicomputer, nounminimize, verbmips, mission-critical, adjectiveMIT, mixer, nounmodel, nounmodel, verbmodelling, nounmodem, nounmodule, nounmonitor, nounMoore, Gordon, Moore's Law, nounmorphing, nounmotherboard, nounMotorola, mouse, nounmouse mat, nounmouse miles, nounmouse potato, nounMP3 player, nounMP4 player, nounMPEG, nounMSC, nounMS-DOS, multimedia, adjectivemulti-player gaming, nounmultiple applications, multiplexer, nounmultitasking, nounnagware, nounNasdaq, nounNASDAQ, Naseem, Prince, National Market System, nounNEC, nerd, nounnest, verbNetscape Navigator, network, nounnetwork, verbneural computer, nounneural network, nounneuroinformatics, nounnewbie, nounnew economy, nounNintendo, node, nounnoise, nounnotebook, nounnumber-cruncher, nounnumber crunching, nounobject, nounobject language, object-oriented, adjectiveOCR, nounOfex, nounoffice machinery, offline, adverboff-line, adjectiveonline, adjectiveonline catalogue, online updating, nounon-screen, adjectiveopen, verbOpen Group, the, open outcry, nounopen system, nounoperating system, nounoperation, nounoptical character recognition, nounoptical fibre, nounoption, nounorder, nounorganizing business, OSI, nounoutbox, nounoutput, nounoutput, verbover-the-counter dealing, over-the-counter market, over-the-counter share, over-the-counter stock, over-the-counter trading, overwrite, verbP2P, adjectivepackage, nounpacket, nounpacket-switching, nounpage, nounpage break, nounpalette, nounpalm phone, nounpalmtop, nounpaperless, adjectiveparallel data query, parallel port, parallel processing, nounPASCAL, nounpass-along, adjectivepassword, nounpaste, verbpasting, nounpatch, nounpause, verbPC, nounPC Card, nounPDA, nounPDF, nounPDF file, pen drive, nounPentium, peripheral, adjectiveperipheral, nounpersonal communicator, nounpersonal computer, nounpersonal electronic device, nounpersonal organizer, nounpetaflop, nounphishing, nounping, verbpiracy, nounpirate, verbpixel, nounplasma screen, nounplatform, nounplatform game, nounPlayStation, plotter, nounplug and play, nounplug-and-play, adjectiveplug-in, nounpointer, nounpop-under, nounpop-up, nounport, nounport, verbportable, adjectivepost, verbpost-industrial, adjectivePostScript, nounPowerPoint, nounprint, verbprinter, nounprintout, nounprint-out, nounprint preview, nounprocess, verbprocessing, nounprocessor, nounprogram, nounprogram, verbprogram file, programmable, adjectiveprogrammer, nounprogramme trading, programming, nounprogramming language, PROLOG, nounPROM, nounprompt, verbprompt, nounprotocol, nounPsion, pull down, nounpull-down, adjectivepull-down menu, nounpunched card, nounquantum computer, nounQuarkXPress, queue, nounqwerty, adjectiveRAM, nounrandom access memory, nounread, verbread only memory, read-only memory, nounread-out, nounread-write, adjectivereal-time, adjectivereboot, verbrecall, verbre-chip, verbrecord, nounrecord, verbrefresh, verbreload, verbremaster, verbremote access, nounremote control, nounremote working, nounreseller, nounreset, verbrespawn, verbretinal scanner, nounretrieval, nounretrieve, verbretry, verbreturn, nounright-click, verbrip, verbroad warrior, nounrobot, nounrollover, nounROM, nounRoute 128, nounrouter, nounroutine, nounRSI, nounRTF, nounrun, verbsalami slicing, nounSamsung, save, verbscalability, nounscalable, adjectivescan, verbscanner, nounscramble, verbscreen, nounscreen-based, adjectivescreen dump, nounscreensaver, nounscreen saver, nounscreenshot, nounscroll, verbscroll bar, nounscroll key, SCSI, nounSEAQ, search, nounsearch, verbsearchable, adjectivesearch engine, nounSEATS, nounsecurity rating, SEGA, self-healing, adjectivesend, verbserial port, server, nounserver farm, nounservice bureau, nounservice pack, nounSET, nounset-up, nounSFA, nounSGML, nounshareware, nounshift, nounshift key, nounshoot-'em-up, nounshopping bot, sig file, nounsilicon, nounsilicon chip, nounSilicon Fen, nounSilicon Glen, Silicon Valley, sim, nounSIMM, nounsimulation, nounSinclair, Sir Clive, single sourcing, skin, nounslo-mo, adjectivesmall office/home office, nounsmart, adjectivesmart bomb, nounsneakernet, nounsoft copy, nounsoftware, nounsoftware engineering, SoHo, SOHO, nounSonic the Hedgehog, sort, nounsoundcard, nounsource code, nounspace bar, nounspam, nounspeech recognition, nounspeech recognition software, speech synthesizer, nounspellcheck, nounspellchecker, nounspell-checker, nounspider, nounspider food, nounspim, nounsplit screen, nounspreadsheet, nounspreadsheet software, spyware, nounstandalone, adjectivestand-alone, adjectivestandby time, nounStarr Report, the, nounstarter pack, nounstart-up, nounstorage, nounstorage unit, store, verbstore-and-forward, nounstrategic information system, stream, verbstreaming, nounStreet Fighter, string, nounstylus, nounsubdirectory, nounsubroutine, nounsuite, nounSun Microsystems, sunrise industry, nounsupercomputer, nounsuperserver, nounsupport, verbsupport, nounswitching, nounsynchronous, adjectivesyntax, nounsynthespian, nounsystem, nounsystem administrator, nounsystems analyst, nounsystems programmer, system tray, nountab, verbtab key, nountab stop, nountag, nountag, verbtape, nountape drive, taskbar, nountechie, nountechnical support, nountechno-, prefixtechnocracy, nountechno-geek, nountechnophobe, nountechy, telecentre, nountelecommuter, nountelematics, nounteleprinter, nounteleworker, nountemplate, nounterabyte, nounteraflop, nounterminal, nountestdeck, nountext-to-speech, adjectivethird-generation, adjectivethird-party software, thumbnail, nountickbox, nountick box, nountime out, nountime-sharing, nountitle bar, nountoggle, nountoner, nountoolbar, nountoolbox, nounTOPIC, nountop-level domain, nountop ranking, nounTorvalds, Linus, Toshiba, Tottenham Court Road, touchpad, nountouch screen, nountrackball, nountransaction processing, transputer, nounTrojan horse, nountroubleshooter, nounTTS, Turing, Alan, tutorial, nounundo, verbuninstall, verbunique visitor, nounUnix, noununlisted share, unlisted stock, unrecoverable error, unzip, verbup, adverbupdate, nounupgrade, verbupload, verbupload, nounuptime, nounusability, nounUSB, nounUSB drive, nounuser-friendly, adjectiveuser group, nounuser interface, nounuser name, nounUS Robotics, utility, nounVActor, nounvalid, adjectivevalue-added reseller, vapourware, nounVDT, nounVDU, nounVGA, nounvideocard, nounvideo game, nounvideo snacking, nounviral marketing, nounvirtual, adjectivevirtual corporation, virtually, adverbvirtual memory, nounvirtual office, nounvirtual organization, virtual reality, nounvirus, nounvoice print, nounvoice recognition, wallpaper, nounWAN, nounWAP, noun-ware, suffixwar game, nounWAV, nounwearable, nounWeb 2.0, nounweb browser, nounweb crawler, nounweb design, nounweb development, web-enabled, adjectiveweb hosting, nounweb log, nounweb log file, wide area network, wi-fi, nounWi-Fi, nounwild card, nounwindow, nounWindows, Wintel, wipe, verbWiponet, nounwireless internet, wireless networking, nounWord, Wordperfect, word processor, nounworkspace, nounworkstation, nounWorld Wide Web, the, worm, nounWozniak, Steve, write, verbwrite-protected, adjectiveWYSIWYG, nounXbox, XML, nounY2K, nounYahoo!, zap, verbzip file, nounzombie, noun
COLLOCATIONS FROM OTHER ENTRIES► be infected with a virus
Word family· Thousands of people may already be infected with the virus.
COLLOCATIONS FROM THE CORPUSADVERB► already· The motivation of the already infected is altruism, the desire not to infect others.
NOUN► aids· She slowly choked to death, a combination of tuberculosis and laryngitis-two of the diseases that infect Aids patients.
► animal· When the blisters burst, they release virus particles that infect healthy animals.· No one knows how humans even become infected with the animal virus.· The rate at which infected animals were being killed was accelerating, Prof King said.· This had been cut to 1.5 days or better for infected animals.· To be sure, scientists have created disease by inoculating animals with brain tissue from infected animals.· Before a virus can infect an animal cell it must first bind to specific receptor molecules embedded in the cell membrane.· But the number of infected animals has been declining in recent years.
► blood· And he adds that trace levels of plasminogen would have been present in the products made from the infected donor's blood.
► cell· After release, viruses remain inactive until they come into contact with and infect another cell.· Viral infectiousness is defined as the ability of a virus to enter and infect a cell in the target host.· They then put the infected cells back into the babies without giving any drug treatment.· The cells destroy infected cells early, before they produce virus, thereby inhibiting viral replication, the company said.· Before a virus can infect an animal cell it must first bind to specific receptor molecules embedded in the cell membrane.· In this case, patients need only be treated until the last of the infected cells is eliminated.
► child· Two different live polio vaccines tested then infected children with the disease rather than protected them; some died.· An infected female who becomes pregnant could infect her unborn child.
► disease· The result is 50,000 children a year infected with the disease.· Two different live polio vaccines tested then infected children with the disease rather than protected them; some died.· When measured against the suffering of people infected with a lethal disease, this point sounds abstract, even callous.· I enjoy infecting her with my diseases and then paying her doctor bills.· Poppy's mouth had infected me with a disease of wanting and that was all I knew.· At the beginning of an epidemic only a few individuals are infected, so the disease spreads fairly slowly.
► man· It has been estimated that in the early eighties the average infected gay man infected an average of five additional gay men.· What went largely unreported, however, was the fact that most of the people getting infected were gay men.· The profile of this population was generally quite different from that of infected homosexual men.
► million· Subtype E already has infected at least 15 million heterosexual men, women and children.
► partner· Partner A may infect partner B, but things will end there.
► patient· Perrin determined that all of the infected patients had received injections while in hospital in Benghazi.· She slowly choked to death, a combination of tuberculosis and laryngitis-two of the diseases that infect Aids patients.· Thus, only 23 of the 50 co-infected patients were included.
► people· These can get into food or water, especially in countries with poor sanitary facilities, and thus infect other people.· Few recently infected people have received the experimental drug mixes, Volberding said.· Tom has infected at least 6 people - thought he has never even met Jane, Mark and Alan.
► person· During that interim, the infected person would not yet have enough antibodies for the test to register.· This can happen with sexually transmitted diseases only if the average infected person infects more than one other person.· From 1985 through 1992, 297 infected persons were identified in 27 states.
► tuberculosis· Two of the four specimens known to be infected with M tuberculosis were positive in the controlled experiment.
► virus· When the blisters burst, they release virus particles that infect healthy animals.· Viral infectiousness is defined as the ability of a virus to enter and infect a cell in the target host.· A macro virus spreads by infecting Microsoft Word or Excel documents.· They said there needed to be more research done, especially on people recently infected with the human immunodeficiency virus.· An acupuncturist at the clinic was found to be carrying the virus, which infects the liver.· In 1988, the virus had infected one out of every sixty-one babies born in New York State.· Before a virus can infect an animal cell it must first bind to specific receptor molecules embedded in the cell membrane.
► woman· The third method is maternal transmission between an infected and pregnant woman and her unborn child.
VERB► become· Every day, 14,000 more become infected.· Among blacks in the sample, 14.7 percent were becoming infected each year.· Itching can be intense, and there may be a visible rash, which can become secondarily infected by bacteria.· So, it might still be possible for these people to become infected.· Dennis was 23 when the 300-acre farm-a family home for two centuries-became infected in 1967.· Mink tissue also would be prohibited from feed because minks also can become infected.· No one knows how humans even become infected with the animal virus.· They also can attack a healthy person who might become infected through a foot wound, for example.
► spread· A macro virus spreads by infecting Microsoft Word or Excel documents.
WORD FAMILYnouninfectiondisinfectantadjectiveinfectiousinfectedverbinfect ≠ disinfectadverbinfectiously
1to give someone a disease: People with the virus may feel perfectly well, but they can still infect others.infect with the number of people infected with HIV2to make something contain something harmful that gives people a diseasebe infected with something Eggs known to be infected with salmonella were allowed to go on sale.GRAMMAR Infect is usually passive in this meaning.3if a feeling or interest that you have infects other people, it makes them begin to feel the same way or have the same interest: Lucy’s enthusiasm soon infected the rest of the class.4if a virus infects your computer or disk, it changes or destroys the information in or on it