groove (redirected from alar groove)

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.

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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.

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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.