groove

(redirected from marginal groove)
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groove

1. the spiral channel, usually V-shaped, in a gramophone record
2. Anatomy any furrow or channel on a bodily structure or part; sulcus
3. Mountaineering a shallow fissure in a rock face or between two rock faces, forming an angle of more than 120?
4. in the groove Jazz playing well and apparently effortlessly, with a good beat, etc.

Groove

A continuous recess formed centrally along the edge of a timber board in order to accommodate a tongue.

groove

[grüv]
(biochemistry)
Any of a group of depressions in the double helix of deoxyribonucleic acid that are believed to be sites occupied by nuclear proteins.
(design engineering)
A long, narrow channel in a surface.
(geology)
Glaciated marks of large size on rock.
(ordnance)
One of the spiral depressions in the rifling of a gun to impart a spinning motion to a projectile which stabilizes it in flight.

groove

A long narrow cut in the edge or face of a wood member; a groove across the grain is a dado; one parallel with the grain is a plow.
References in periodicals archive ?
Movement of the mucous string inside the marginal groove proper does not appear to be interrupted.
It was unclear whether, or at what point, the mucous string is removed from the marginal groove proper.
Foster-Smith (1975) proposed that three conditions must be met for particle selection to take place at the marginal groove of bivalve ctenidia (i.e., in Mytilus edulis, Cerastoderma edule, Venerupis pullastra): (1) some particles must be able to enter the deep area of the marginal groove; (2) particles in the deep area of the marginal groove must be physically separate from the superficial material; and (3) the superficial material must be rejected, while the material in the deeper area of the marginal groove is accepted.
edulis (filibranch), with the particles in the deep region of the marginal groove tending to be small, and those in the superficial material tending to be larger.
Two-layer transport at the marginal groove, in combination with particle sorting, has previously been reported only for pseudolamellibrachs.