| 释义 |
dropout
drop·out D0397500 (drŏp′out′)n.1. a. One who quits school.b. One who has withdrawn from a given social group or environment.2. a. A segment of a recording device, such as a magnetic tape or optical disk, that is damaged or unreadable.b. The loss of an audio or video signal.dropout (ˈdrɒpˌaʊt) n1. (Education) a student who fails to complete a school or college course2. (Sociology) a person who rejects conventional society3. (Rugby) rugby : drop-out a drop kick taken by the defending team to restart play, as after a touchdown4. (Electronics) electronics : drop-out a momentary loss of signal in a magnetic recording medium as a result of an imperfection in its magnetic coatingvbto abandon or withdraw from (a school, social group, job, etc)drop′out` or drop′-out`,
n. 1. a student who withdraws before completing a course of instruction. 2. one who withdraws from established society. 3. a person who withdraws from a competition, job, task, etc. [1925–30] dropoutA person who leaves a school or college without having completed the course of study.Thesaurus| Noun | 1. | dropout - someone who quits school before graduationquitter - a person who gives up too easily | | 2. | dropout - someone who withdraws from a social group or environmentindividualist - a person who pursues independent thought or action |
Translationsdropout
dropout factoryA high school that has an unusually high number of students who leave school (drop out) before graduating. Primarily heard in US, South Africa. With so little funding going to public education these days, it's no wonder that so many schools are becoming dropout factories.See also: dropout, factorydrop out1. verb To fall or spill out of something. I didn't realize that I hadn't fully zipped my backpack until my books started dropping out of it.2. verb To break and/or plunge suddenly. This usage typically refers to the bottom of something. The bottom dropped out of the paper bag once it got wet. If the bottom drops out of the stock market, we could have another Great Depression ahead of us.3. verb To let someone or something fall or proceed out of something. In this usage, a noun or pronoun can be used between "drop" and "out." Drop the troops out of the plane once you're safely over the compound. Of course the boys got into mischief and started dropping each other's things out the window.4. verb To eliminate or exclude something. In this usage, a noun or pronoun can be used between "drop" and "out." Something is wrong with the sound system because it's dropping out every third word.5. verb To not be amplified, broadcast, or delivered to a receiver, typically due to some kind of connection problem. Something is wrong with the sound system because every third word is dropping out. I have to call my phone company because my calls keep dropping out. Back when we had dial-up, the connection would drop out when we got an incoming call.6. verb To abandon society and conventional values, as due to disillusionment with them. After surviving a serious illness, my sister dropped out and bought a house in the country instead of going back to her corporate job.7. verb To leave an activity or program without finishing it. I'm going back to school because I always regretted dropping out of college.8. noun One who has left school before graduation. In this usage, the phrase is often written as one word or hyphenated. I'm going back to school because I always regretted being a college dropout.See also: drop, outdrop out (of something) 1. . Lit. to fall out of something. One by one, the skydivers dropped out of the plane. The marshmallows dropped out of the bag. 2. Lit. or Fig. [for the bottom of something] to break loose and drop. The bottom dropped out of the box, spilling everything everywhere. The bottom dropped out of the stock market, and we lost a lot of money. 3. Fig. [for someone] to resign from or cease being a member of something; [for someone] to leave school. Sally dropped out of school for some unknown reason. But why did she drop out?See also: drop, outdrop outWithdraw from participation in a group such as a school, club, or game; also, withdraw from society owing to disillusionment. For example, He couldn't afford the membership dues and had to drop out, or She planned to drop out from college for a year. [Late 1800s] See also: drop, outdrop outv.1. To fall out of something: My card must have dropped out of the bag at some point.2. To make or let something or someone fall out of something: I dropped the stones out of the window.3. To withdraw from participation in something, as a game, club, or school: The committee is trying to determine why so many students were dropping out. I dropped out of algebra because it was too hard. I dropped history out of my schedule this term.4. To withdraw from established society, especially due to disillusionment with conventional values: My cousin dropped out and moved to the tropics.5. To omit something: This computer drops out the semicolons. The old stereo drops the bass out.6. To be omitted: When words are contracted, some sounds or letters drop out.See also: drop, outdrop out1. in. to withdraw from a conventional lifestyle. Sometimes I just want to drop out and raise pigs or something. 2. in. to drop out of school or some organization. Don’t drop out of school. You’ll regret it. 3. and dropout n. someone who has dropped out of school. Dropouts may find it very hard to get a job. See also: drop, outdropout verbSee drop outdropout
dropout1. a student who fails to complete a school or college course 2. Rugby a drop kick taken by the defending team to restart play, as after a touchdown 3. Electronics a momentary loss of signal in a magnetic recording medium as a result of an imperfection in its magnetic coating dropout[′dräp‚au̇t] (computer science) The accidental disappearance of a valid bit, digit, or character from a storage medium or during reading from or writing to a storage device. (electricity) Of a relay, the maximum current, voltage, power, or such, at which it will release from its energized position. (electronics) A reduction in output signal level during reproduction of recorded data, sufficient to cause a processing error. (graphic arts) A halftone negative, print, or plate on which some of the original image has been removed by masking or opaquing. dropout(1) On magnetic media, a bit that has lost its strength due to a surface defect or recording malfunction. If the bit is in an audio or video file, it might be detected by the error correction circuitry and either corrected or not, but if not, it is often not noticed by the human ear or eye.
(2) In data transmission, a momentary loss of signal that is due to system malfunction or excessive noise.dropout
dropout EBM
A term of art for a subject in a clinical trial who for any reason fails to continue in the trial until the last visit or observation, as required of him or her by the study protocol.dropout Adolescent medicine A person, often a high school student, who abandons his/her education before graduating Clinical trials A person admitted to a clinical–phase III–trial for efficacy of a therapeutic agent or procedure, who abandons the role of 'guinea pig'dropout (drŏp′out″) 1. An individual who matriculates in, but does not complete a course of study sponsored by an academic institution.2. One who, after enrollment, chooses not to participate in a research investigation. In health care jargon, those who stop participating in a study and do not maintain contact with the investigators are said to be “lost to follow-up.” dropout
Related to dropout: dropout voltageWords related to dropoutnoun someone who quits school before graduationRelated Wordsnoun someone who withdraws from a social group or environmentRelated Words |