drift

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drift

 [drift]
1. slow movement away from the normal or original position.
2. a chance variation, as in gene frequency from one generation to another; the smaller the population, the greater are the random variations.
antigenic drift relatively minor changes in the antigenic structure of a virus strain, probably resulting from natural selection of variants circulating among an immune or partially immune population. See also antigenic shift.
ulnar drift ulnar deviation.

drift

(drift),
1. A gradual movement, as from an original position.
2. A gradual change in the value of a random variable over time as a result of various factors, some random and some systematic effects of trend, manipulation, etc.

drift

(drift)
1. slow movement away from the normal or original position.
2. a chance variation, as in gene frequency between populations; the smaller the population, the greater are the chance random variations.

radial drift  see under deviation.
ulnar drift  see under deviation.

drift

Etymology: AS, drifan, to move forward
a gradual movement away from the original position. See also antigenic drift, genetic drift.

drift

Orthopedics See Pronator drift Virology Antigenic drift, see there.

drift

(drift)
1. A gradual movement, as from an original position.
2. A gradual change in the value of a random variable over time as a result of various factors, some random and some systematic effects of trend or manipulation.

drift

see RANDOM GENETIC DRIFT.

drift

(drift)
In dentistry, movement of teeth usually medially due to loss of adjacent teeth or wear of proximal surfaces.
Synonym(s): mesial drift, migrating teeth.

drift,

drift

chance variation; in genetics, the random changes in gene frequencies in a population.

antigenic drift
see antigenic drift.
drift lambing
a strategy in which ewes which have lambed are periodically removed from a flock of lambing ewes by moving the unlambed ewes on to the next paddock or field.
References in periodicals archive ?
In principle, any instance when a drifter crossed the major fairway as defined above could potentially represent a separate accident or any other release of oil.
Records, The Drifter starts in Bali, where Machado is looking for life's deeper meaning.
The basic parameters (the maximum and minimum drift time after the drifter crossed both fairway branches, and the final location of each drifter) of these 26 drifters are illustrated in Fig.
SAD REALITY: Weak law enforcement helps drifters to run loose, leading to tragedies.
But it seems that the researcher didn't learn much from this particular drifter, as it had been at sea since the mid 1960's.
Rally champion and all round motorsports hero Abdo Feghaly who directed the race pointed out that Red Bull Car Park Drift has once again represented a unique platform for Arab drifters to meet and compete on a professional level while promoting safe driving.
Drifter is set in the near future and tells the story of a non-believer's struggle to survive a religious civil war on the battle-scarred moors of the North of England.
The point of difference for Drifter Pale Ale is the hops.
5 at the off and he ran the sort of race you would expect from a significant pre-race drifter.
LANCASTER - Bobby Maxwell, a singer with Chico Vega's Drifters, is an enigma.
In High Plains Drifter, his character manipulates the inhabitants of Lago into painting their town red, as a metaphor for a living hell.
On a recent holiday in Thailand she reportedly met up with an Australian drifter on the beach.