trefoiltre‧foil /ˈtriːfɔɪl, ˈtrefɔɪl/ noun [countable] technical 
Word Origin
Word OriginWORD ORIGINtrefoil
ExamplesOrigin:
1300-1400 Old French trefeuil, from Latin trifolium, from tri- ‘three’ + folium ‘leaf’EXAMPLES FROM THE CORPUS
word sets- Bees hummed steadily through the yellow bird's foot trefoil that wove itself in a tangled carpet over the sand.
WORD SETS► Plants
1a type of small plant that has leaves which divide into three parts2a pattern in the shape of these leavesacacia, nounacorn, nounalmond, nounaloe vera, nounanemone, nounangelica, nounaniseed, nounannual, nounanther, nounapricot, nounaquatic, adjectivearboreal, adjectivearboretum, nounartichoke, nounash, nounasparagus, nounaspen, nounaspidistra, nounaubergine, nounavocado, nounbalsa, nounbalsam, nounbamboo, nounbark, nounbarley, nounbasil, nounbay, nounbay leaf, nounbean, nounbeech, nounbeet, nounbegonia, nounbelladonna, nounbetel, nounbiennial, adjectivebilberry, nounbindweed, nounbiotechnology, nounbirch, nounblackberry, nounblackcurrant, nounblackthorn, nounbloom, nounbloom, verbblossom, nounblossom, verbbluebell, nounblueberry, nounbole, nounboll, nounbotanical, adjectivebotanist, nounbotany, nounbougainvillea, nounbough, nounbox, nounbracken, nounbranch, nounbreadfruit, nounbriar, nounbrier, nounbroad bean, nounbroadleaved, adjectivebroccoli, nounbroom, nounBrussels sprout, nounbud, nounbud, verbbulb, nounbulrush, nounburr, nounbush, nounbusy Lizzie, nounbutter bean, nounbuttercup, nouncabbage, nouncacao, nouncactus, nouncalyx, nouncamellia, nouncanopy, nouncantaloup, nouncapsicum, nouncaraway, nouncarnation, nouncarrot, nouncashew, nouncassava, nouncatkin, nouncauliflower, nouncedar, nouncelery, nouncellulose, nounchard, nouncherry, nounchervil, nounchestnut, nounchickweed, nounchicory, nounChinese leaves, nounchives, nounchlorophyll, nounchokecherry, nounchrysanthemum, nouncilantro, nouncitron, nouncitronella, nouncitrus, nounclematis, nounclementine, nounclimber, nounclove, nounclover, nouncloverleaf, nouncoca, nouncocoa bean, nouncoconut, nouncoffee bean, nouncollard greens, nouncone, nounconifer, nounconker, nouncopper beech, nouncore, nouncoriander, nouncorn, nouncorncob, nouncornflower, nouncotton, nouncottonwood, nouncovert, nouncowslip, nouncrabgrass, nouncreep, verbcreeper, nouncress, nouncrocus, nouncrop, verbcross-fertilize, verbcultivate, verbcultivation, nouncumin, nouncutting, nouncyclamen, nouncypress, noundaffodil, noundahlia, noundaisy, noundamson, noundandelion, noundandelion clock, noundate, noundeadly nightshade, noundeciduous, adjectivedill, noundock, noundouble, adjectiveduckweed, nounDutch elm disease, nounelder, nounelderberry, nounelm, nounendive, nounetiolated, adjectiveeucalyptus, nounevergreen, adjectiveevergreen, nounfemale, adjectivefennel, nounfern, nounfertilize, verbfibre, nounfig leaf, nounfir, nounflax, nounflesh, nounfleshy, adjectiveflora, nounflower, verbfoliage, nounforget-me-not, nounfoxglove, nounfreesia, nounfrond, nounfruit, nounfruit, verbfuchsia, nounfungal, adjectivefungus, nounfurze, noungardenia, noungentian, noungeranium, noungerminate, verbginger, noungladiolus, noungooseberry, noungorse, noungourd, noungrape, noungrapefruit, noungrapevine, noungrass, noungrassy, adjectivegreen, adjectivegreen bean, noungreengage, noungreen onion, noungreen pepper, noungroundnut, nounguava, noungum, noungum tree, nounhardy, adjectiveharicot, nounhawthorn, nounhazel, nounhazelnut, nounheart, nounheath, nounheather, nounhedgerow, nounheliotrope, nounhemlock, nounhemp, nounherb, nounherbaceous, adjectivehibiscus, nounhickory, nounhip, nounholly, nounhollyhock, nounhoneysuckle, nounhorse chestnut, nounhorseradish, nounhuckleberry, nounhusk, nounhyacinth, nounhybrid, nouniris, nounivy, nounjasmine, nounJerusalem artichoke, nounjuniper, nounkale, nounkelp, nounkernel, nounkidney bean, nounkumquat, nounlaburnum, nounlarch, nounlaurel, nounlavender, nounleader, nounleaf, nounleaf mould, nounleek, nounlegume, nounlemon, nounlentil, nounlettuce, nounlichen, nounlilac, nounlily, nounlily of the valley, nounlima bean, nounlimb, nounlime, nounlinden, nounlinseed, nounlocoweed, nounlog, nounloganberry, nounlotus, nounlush, adjectivelychee, nounmagnolia, nounmahogany, nounmale, adjectivemallow, nounmandrake, nounmangrove, nounmaple, nounmarigold, nounmarrow, nounmay, nounmilkweed, nounmimosa, nounmint, nounmistletoe, nounmorning glory, nounmoss, nounmountain ash, nounmulberry, nounmustard, nounmycology, nounmyrrh, nounmyrtle, nounnarcissus, nounnasturtium, nounnative, adjectivenative, nounnaturalist, nounnectarine, nounneedle, nounnettle, nounnodal, adjectivenode, nounnodule, nounnut, nounnutshell, nounoak, nounoffshoot, nounoilseed rape, nounoleander, nounolive, nounorchard, nounorchid, nounosier, nounovary, nounovergrown, adjectiveovergrowth, nounox-eye, nounpalm, nounpalm tree, nounpampas grass, nounpansy, nounpapyrus, nounparasite, nounparasitic, adjectiveparsley, nounparsnip, nounpassionflower, nounpeach, nounpear, nounpeat, nounpecan, nounpeony, nounpeppermint, nounperennial, adjectiveperennial, nounperiwinkle, nounpersimmon, nounpetal, nounpetunia, nounphlox, nounphotosynthesis, nounpimento, nounpimpernel, nounpine, nounpineapple, nounpinewood, nounpink, nounpinto bean, nounpip, nounpippin, nounpistachio, nounpistil, nounpit, nounpitch pine, nounpith, nounplane, nounplane tree, nounplankton, nounplant, nounplant, verbplantain, nounplum, nounpod, nounpoinsettia, nounpoison ivy, nounpoison oak, nounpollen, nounpollen count, nounpollinate, verbpoplar, nounpoppy, nounpoppyseed, nounpotato, nounprickle, nounprickly, adjectiveprickly pear, nounprimrose, nounprimula, nounprivet, nounpropagate, verbpuffball, nounpulp, nounpussy willow, nounragweed, nounragwort, nounramble, verbrambler, nounrampant, adjectiverank, adjectiverape, nounraspberry, nounrattan, nounredcurrant, nounredwood, nounreed, nounreedy, adjectiveresin, nounrhizome, nounrhododendron, nounrhubarb, nounrice, nounrind, nounripe, adjectiveripen, verbroot, nounroot, verbrose, nounrosebud, nounrosemary, nounrubber plant, nounrunner, nounrunner bean, nounrush, nounsac, nounsagebrush, nounsandalwood, nounsap, nounsapling, nounsappy, adjectivesapwood, nounsassafras, nounsavory, nounscallion, nounscion, nounscrub, nounscrubby, adjectiveseaweed, nounsedge, nounseed, nounseed, verbseedling, nounsegment, nounsenna, nounsepal, nounsequoia, nounsesame, nounset, nounshallot, nounshamrock, nounshed, verbshoot, verbshoot, nounshrub, nounsilver birch, nounskin, nounsloe, nounsnapdragon, nounsnowdrop, nounsorghum, nounsorrel, nounsoya bean, nounspearmint, nounspinach, nounspiny, adjectivespore, nounsprig, nounspring onion, nounsprout, verbsprout, nounspruce, nounsquash, nounstalk, nounstamen, nounstem, nounstigma, nounstinging nettle, nounstock, nounstraw, nounstrawberry, nounstring bean, nounstump, nounsucculent, nounsucker, nounsugar, nounsugar beet, nounsugarcane, nounsunflower, nounswede, nounsweetcorn, nounsweet gum, nounsweet pea, nounsweet william, nounsycamore, nountamarind, nountangerine, nountaproot, nountea, nounteasel, nounteazel, nountendril, nounthistle, nounthistledown, nounthorn, nounthorny, adjectivethyme, nountimber, nountoadstool, nountop, nountrailing, adjectivetranspiration, nountranspire, verbtransplant, verbtree, nountreetop, nountrefoil, nountruffle, nountrunk, nountuber, nountulip, nountumbleweed, nounturnip, nountwig, noununderbrush, nounundergrowth, noununripe, adjectivevanilla, nounvariegated, adjectivevegetable, nounvegetation, nounvein, nounvetch, nounvine, nounviolet, nounvirginia creeper, nounwallflower, nounwalnut, nounwater chestnut, nounwatercress, nounwater lily, nounweed, nounwhorl, nounwild rice, nounwillow, nounwilt, verbwisteria, nounwither, verbwithered, adjectivewoody, adjectivewormwood, nounyam, nounyew, nounyucca, noun