| FR | failure rate; film-screen radiograph; fasciculus retroflexus; febrile reaction; feedback regulation;... |
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| Fr | fracture; francium; franklin [unit charge]; French; frequency or frequent |
| frequent flooding | <ecology> Flooding which is likely to occur often during usual weather conditions (i.e., more than a 50 percent chance of flooding in any year, or more than 50 times in 100 years). (09 Oct 1997) |
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| frequent | 1. Often to be met with; happening at short intervals; often repeated or occurring; as, frequent visits. "Frequent feudal towers." 2. Addicted to any course of conduct; inclined to indulge in any practice; habitual; persistent. "He has been loud and frequent in declaring himself hearty for the government." (Swift) 3. Full; crowded; thronged. "'T is Caesar's will to have a frequent senate." (B. Jonson) 4. Often or commonly reported. "'T is frequent in the city he hath subdued The Catti and the Daci." (Massinger) Origin: L. Frequens, -entis, crowded, frequent, akin to farcire to stuff: cf. F. Frequent. Cf. Farce. 1. To visit often; to resort to often or habitually. "He frequented the court of Augustus." (Dryden) 2. To make full; to fill. "With their sighs the air Frequenting, sent from hearts contrite." (Milton) Origin: L. Frequentare: cf. F. Frequenter. See Frequent. Source: Websters Dictionary (01 Mar 1998) |
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| overbank flooding | <ecology> Any situation in which inundation occurs as a result of the water level of a river or stream rising above bank level. (05 Jan 1998) |
| flooding | The filling or covering with water or other fluid; overflow; inundation; the filling anything to excess. 2. <medicine> An abnormal or excessive discharge of blood from the uterus. Source: Websters Dictionary (01 Mar 1998) |
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