| ITLC | instant thin-layer chromatography |
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| instant | 1. A point in duration; a moment; a portion of time too short to be estimated; also, any particular moment. "There is scarce an instant between their flourishing and their not being." (Hooker) 2. A day of the present or current month; as, the sixth instant; an elliptical expression equivalent to the sixth of the month instant, i. E, the current month. See Instant. Synonym: Moment, flash, second. Origin: F. Instant, fr. L. Instans standing by, being near, present. See Instant. Source: Websters Dictionary (01 Mar 1998) |
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| instantaneous | 1. Done or occurring in an instant, or without any perceptible duration of time; as, the passage of electricity appears to be instantaneous. "His reason saw With instantaneous view, the truth of things." (Thomson) 2. at or during a given instant; as, instantaneous acceleration, velocity, etc. <physics> Instantaneous center of rotation, in a body which has motions both of translation and rotation, is a line, which is supposed to be rigidly united with the body, and which for the instant is at rest. The motion of the body is for the instant simply that of rotation about the instantaneous axis. Instanta"neously, Instanta"neousness. Origin: Cf. F. Instantane. Source: Websters Dictionary (01 Mar 1998) |
| instantaneous electrical axis | The resultant axis of the electromotive forces developing in the heart at any given moment. (05 Mar 2000) |
| instantaneous rate | <epidemiology> In a short time interval (e.g a week), the number of events (e.g. Births in the UK) taking place during the interval is approximately proportional to the length of the interval. The constant of proportionality is the rate at which these events occur. This argument becomes more and more exact as the length of the time interval becomes shorter and shorter. When the time interval has shrunk to an instant, the rate has become an `instantaneous rate'. A bad term; just call it a rate. (05 Dec 1998) |
| instantaneous vector | The resultant vector of the heart's action currents at any given moment, usually represented as an arrow of appropriate direction and magnitude. (05 Mar 2000) |
| instant dry nonfat milk |
Dried skimmed milk that may be stored at room temperature until needed and then reconstituted by adding water to the granules.
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| instant | a particular point in time |
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| instant | a very short time (as the time it takes to blink once) |
| instant | demanding attention |
| instant | occurring with no delay |
| instant | in or of the present month |
| instant | occurring with no delay |
| instant | the difference between the instantaneous pressure at a point in a sound field and the average pressure at that point |
| instant | without any delay |
| instant | the quickness of action or occurrence |
| instant | find an instance of (a word or particular usage of a word) |
| instant | represent by an instance |
| instant | a representation of an idea in the form of an instance of it |
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