| frequency of micturition | Micturition at short intervals; it may result from increased urine formation, decreased bladder capacity, or lower urinary tract irritation. (05 Mar 2000) |
|---|---|
| frequency of occurrence | The number of times a given event occurs at specified sample points during a defined period. (07 Apr 1998) |
| frequency spectrum | The range of frequencies in a signal, used to describe the resolving power of an imaging system in radiology. (05 Mar 2000) |
| frequency, urinary | Urinating too often, at too frequent intervals, not due to an unusually large volume of urine, but rather to a decrease in the capacity of the bladder to hold urine. (12 Dec 1998) |
| frequenin | <immunology> A water in oil emulsion used experimentally for stimulating a vigorous immune response to an antigen (that is in the aqueous phase). Complete Freund's adjuvant contains heat killed tubercle bacilli, these are omitted from Freund's incomplete adjuvant. Unsuitable for use in humans because it elicits a severe granulomatous reaction. (18 Nov 1997) |
| 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) |
| 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) |
| frequenter | One who frequents; one who often visits, or resorts to customarily. Source: Websters Dictionary (01 Mar 1998) |
| Frerichs' theory | That uraemia represents a toxic condition caused by ammonium carbonate, which is formed as the result of the action of a plasma enzyme on the increased amounts of urea. (05 Mar 2000) |
| Frerichs, Friedrich von | <person> German pathologist and clinician, 1819-1885. See: Frerichs' theory. (05 Mar 2000) |
| fresh | 1. Possessed of original life and vigor; new and strong; unimpaired; sound. 2. New; original; additional. "Fear of fresh mistakes." "A fresh pleasure in every fresh posture of the limbs." (Landor) 3. Lately produced, gathered, or prepared for market; not stale; not dried or preserved; not wilted, faded, or tainted; in good condition; as, fresh vegetables, flowers, eggs, meat, fruit, etc.; recently made or obtained; occurring again; repeated; as, a fresh supply of goods; fresh tea, raisins, etc.; lately come or made public; as, fresh news; recently taken from a well or spring; as, fresh water. 4. Youthful; florid; as, these fresh nymphs. 5. In a raw, green, or untried state; uncultivated; uncultured; unpracticed; as, a fresh hand on a ship. 6. Renewed in vigor, alacrity, or readiness for action; as, fresh for a combat; hence, tending to renew in vigor; rather strong; cool or brisk; as, a fresh wind. 7. Not salt; as, fresh water, in distinction from that which is from the sea, or brackish; fresh meat, in distinction from that which is pickled or salted. Fresh breeze, increased speed. Synonym: Sound, unimpaired, recent, unfaded: ruddy, florid, sweet, good: inexperienced, unpracticed: unused, lively, vigorous, strong. Origin: OE. Fresch, AS. Fersc; akin to D. Versch, G. Frisch, OHG. Frisc, Sw. Frisk, Dan. Frisk, fersk, Icel. Frskr frisky, brisk, ferskr fresh; cf. It. Fresco, OF. Fres, freis, fem. Freske, fresche, F. Frais, fem. Frache, which are of German origin. Cf. Fraischeur, Fresco, Frisk. Source: Websters Dictionary (01 Mar 1998) |
| fresh frozen plasma | The fluid component of blood lacking the cells but containing all the necessary plasma proteins, used to restore the protein clotting factors in some individuals with clotting factor deficiencies. (27 Sep 1997) |
| fresh water | 1. Water containing no significant amounts of salts, such as rivers and lakes. 2. Of, pertaining to, or living in, water not salt; as, fresh-water geological deposits; a fresh water fish; fresh water mussels. 3. Accustomed to sail on fresh water only; unskilled as a seaman; as, a fresh water sailor. 4. Unskilled; raw. Fresh water soldiers. Source: Websters Dictionary (01 Mar 1998) |
| freshen | 1. To make fresh; to separate, as water, from saline ingredients; to make less salt; as, to freshen water, fish, or flesh. 2. To refresh; to revive. 3. To relieve, as a rope, by change of place where friction wears it; or to renew, as the material used to prevent chafing; as, to freshen a hawse. To freshen ballast, to shift Or restore it. To freshen the hawse, to pay out a little more cable, so as to bring the chafe on another part. To freshen the way, to increase the speed of a vessel. Origin: Freshened; Freshening. Source: Websters Dictionary (01 Mar 1998) |
| freshening | Preparation of an open, partially healed wound for secondary closure by removal of fibrin, granulations, and early scar tissue. (05 Mar 2000) |