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anchor

(ang'ker),
Any device that fixes the position of an object with respect to its surroundings.
[M.E. anker, fr. O.E. ancor, fr. L. ancora, fr. G. ankyra]

anchor

A clinical trial term of art for a planned activity, often marking the transition between epochs (stages) or elements of a clinical study plan—e.g., FP/FV (first patient/first visit).

anchor

(ang′kŏr) [L. ancora, anchora, fr Gr. ankyra, anchor]
1. Any structure that provides stability for a prosthetic dental appliance, e.g., a crown, bridge, or denture. The anchor may be a metal implant, a natural tooth, or part of a fixed bridge.
2. In emergency medicine, to tie or attach a rope or sling so it will not move and can support the weight of the rescuers, basket, and patient.
3. A tree, rock, door casing, or other strong stable device that will not move when a rescuer and patient's weight are attached to it.
4. In cell biology, a scaffold within the cell or its membranes, on which enzymes or other important molecules are suspended.
References in periodicals archive ?
T-bar anchor tags have been used in fish and crustacean studies, but apparently not in bivalve studies (Ogbum & Ruello 1999, Liu et al.
Observations of the tagging methods at each sampling time point indicated that t-bar anchor tags were better for use in long-term studies than plastic-laminated tags glued to the top shells of the oysters.
An evaluation of six internal anchor tags for tagging juvenile striped bass.
Placing anchor tags directly above category headings or hard rules will result in clear organization and pleasant viewing and will enhance the effectiveness of the table of contents.
Fish were then individually measured to the nearest mm and tagged with abdominal anchor tags (Floy Tag and MFG Co., Inc., Seattle, WA).
Fish were measured to the nearest cm, tagged with Floy FT-2 dart tags for fish [is greater than] 35 cm and FD-67 anchor tags for fish [is less than] 35 cm, and released in rivers flowing into the Van Diemen Gulf and the Gulf of Carpentaria of northern Australia (Davis and Reid, 1982).
Estimates of tag shedding rates for Floy FT-2 dart and FD-67 anchor tags in barramundi, Lates calcarifer (Bloch).