drift


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Related to drift: Drift velocity, drift current

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 ?
Kauffman's review of pesticide drift complaints from Lane County's Highway 36 corridor found that some were misclassified by PARC.
We collected benthic samples in reaches where we collected drift samples to determine if there appeared to be any long-term effects of hikers on standing stocks of benthic invertebrates and organic matter in impacted reaches.
As a result, they can reduce drift if used properly.
The author clearly admires the Soviets' drift station achievements, and concludes (p.
We estimate that the Irish drift nets take between 2% and 10% of the salmon stock returning to Welsh rivers.
Drifting horses do not drift on the basis of either nefarious activity or inside information; they drift because market forces dictate the price and, as financial markets show, market forces can get it wrong.
The EU had already banned drift nets in the Mediterranean and the Atlantic Ocean from 1 January 2002, in order to protect porpoises and dolphins.
They defined "exiting the roadway" as touching a wheel beyond the paved shoulder, except where a drift vehicle actually Contacted a parked vehicle while still on the shoulder.
That's the question that Ryan, a struggling Los Angeles screenwriter, asks himself in the drama Drift.
Using white thread, she wove into each photograph an image of one of ten hypothetical phases in the process of continental drift, the threads running in and out of the stratifications and super-impositions of plant elements and water reflecting the sky.
Invertebrate drift has intrigued stream ecologists for more than 3 decades (Waters, 1972), and has been the basis for much controversy.
Mohamed al-Khaiat won the Qatar qualifiers of Red Bull Car Park Drift, while Mohamed Qutami was the runner-up ahead of third-placed Abdullah al-Mohtaseb.