Of a fruit or seed: shrivelled or wrinkled, esp. as a result of some drying process. Obsolete.

Botany, Anatomy, Zoology. Marked by rugæ or wrinkles; rugose, corrugated.

Botany and Zoology. Long and straight with incurved edges, so as to resemble a gutter or channel; having one or more longitudinal grooves or…

Marked with or having ribs or ridges. Of leaves, other plant parts, mollusc shells, etc.

= 2a above.

Having ribs (in various senses). Also: suggestive of or resembling ribs.

Marked by rugae or wrinkles; wrinkled, corrugated, ridged. Frequently used in scientific contexts.

Of the endosperm of a seed: having an irregular pattern of ridges and furrows, so as to appear chewed, as in nutmeg (genus Myristica) and soursop…

Botany. = ruminate, adj.

Marked with striolæ.

(of a leaf) having more than one rib.

Having a raised ridge. (See crest, n.1 9.)

having ribs branching off like the prongs of a fork.

three-ribbed.

Furnished with two keels or axial ridges.

Pertaining to the carina; see carina, n.

Furnished with a carina, n. or ridge; keeled.

Botany. Marked with three furrows or grooves, three-furrowed.