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 ?
CARDIFF band Under The Driftwood will be playing at the O2 Arena in London after winning the Welsh final of the Surface Unsigned Festival.
SEA'S EDGE: Artist Silas Birtwistle with his conference table made from driftwood which is on display at theWorld Museum, pictured together with staff and volunteers
As for the driftwood in the exhibition, she says she is out on the beach near her home on most days collecting likely pieces to create sculpture or use as a canvas.
There were so many wonderful sculptures that it was too difficult to decide which ones would occupy the driftwood "trail," so we decided to make two separate artworks, each different but with the same theme.
All selections of wood with unscathed bark once they were called Now only driftwood Even those setting down roots.
NEW YORK -- Driftwood Hospitality Management LLC, and a real estate investment fund managed and advised by affiliates of Apollo Global Real Estate Management, L.
Driftwood Software had access to a range of business and technical tools through the Intel Developer Zone.
SOFA Conran thackery large sofa, M&S, PS1799 MIRROR: Driftwood wall mirror, OKA, www.
YOUNG pirates were back crossing swords on the w beach at New Brighton after a community rebuilt a driftwood ship destroyed r in an arson attack.
In the last year and a half, charging stations have opened in Lincoln City, Coos Bay and, most recently, Florence, where the Driftwood Shores resort unveiled its charging station last week.
The pair were collecting driftwood in a shopping trolley when they were cut off by the incoming tide at North Gare, Hartlepool.