[rap-id] /ˈræp ɪd/
adjective, sometimes, rapider, rapidest.
occurring within a short time; happening speedily:
moving or acting with great speed; swift:
a rapid worker.
characterized by speed:
Usually, rapids. a part of a river where the current runs very swiftly.
(of an action or movement) performed or occurring during a short interval of time; quick: a rapid transformation
characterized by high speed: rapid movement
acting or moving quickly; fast: a rapid worker
1630s, “moving quickly,” from French rapide (17c.) and directly from Latin rapidus “hasty, swift, rapid; snatching; fierce, impetuous,” from rapere “hurry away, carry off, seize, plunder,” from PIE root *rep- “to snatch” (cf. Greek ereptomai “devour,” harpazein “snatch away,” Lithuanian raples “tongs”). Meaning “happening in a short time” is from 1780. Related: Rapidly; rapidness. Rapid-transit first attested 1852, in reference to street railways; rapid eye movement is from 1906.
[rah-pee-doh; Spanish rah-pee-th aw; Italian rah-pee-daw] /ˈrɑ piˌdoʊ; Spanish ˈrɑ piˌðɔ; Italian ˈrɑ pi dɔ/ noun, plural rapidos [rah-pee-dohz; Spanish rah-pee-th aws] /ˈrɑ piˌdoʊz; Spanish ˈrɑ piˌðɔs/ (Show IPA). Italian, rapidi [rah-pee-dee] /ˈrɑ pi di/ (Show IPA) (esp. in Spain, Italy, and Latin America) 1. an express train.
- Rapid plasma reagin test
rapid plasma reagin test n. Any of a group of serologic tests for syphilis. Also called RPR test.
- Rapid prototyping
programming The creation of a working model of a software module to demonstrate the feasibility of the function. The prototype is later refined for inclusion in a final product. (1996-05-29)
adjective giving a quick response, esp. to an emergency; pertaining to a person or group that is set to respond quickly to an emergency Word Origin 1955