sulcus

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Related to Median sulcus: Filiform papillae, anterior median fissure

sulcus

(sul -kŭs) (plural: sulci) an area of subparallel furrows and ridges on the surface of a planet or satellite. The word is used in the approved name of such a feature.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006

sulcus

[′səl·kəs]
(zoology)
A furrow or groove, especially one on the surface of the cerebrum.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
the supra-anal plate is triangular, widening basally, median sulcus proximad, very broad and moderately deep, furculae represented by two small, rounded projections; whereas in N.
Pronotum presents the caudal margin emarginated, showing moderate lateral convexity and median emargination; median sulcus prominent proximad, then weak, becoming prominent again caudally.
A pair of slightly enlarged tubercles directly in front of the transverse median sulcus; the latter fairly indistinct.
Transverse median sulcus rather indistinct and short.
Supraanal plate triangular, slightly broader basally, tapering gradually towards a pointed rounded apex, median sulcus basally as broad as furculae, deep about one third, then narrow and shallow, extending beyond midlength.