ribbed (root: rib)

• POS: Verb (transitive)

CIDE DICTIONARY

ribbed, a. 

•  Furnished or formed with ribs; as, a ribbed cylinder; ribbed cloth.  [1913 Webster]
•  Intercalated with slate; -- said of a seam of coal.  Raymond.  [1913 Webster]

OXFORD DICTIONARY

ribbed, adj. having ribs or riblike markings.

THESAURUS

ribbed

canaliculate, canaliculated, chamfered, channeled, corduroy, corduroyed, corrugate, corrugated, costate, crimped, cut, dadoed, engraved, fluted, furrowed, gashed, goffered, gouged, grooved, incised, pleated, rabbeted, rifled, rutted, rutty, scored, scratched, slit, striated, sulcate, sulcated, troughed, wrinkled

ROGET THESAURUS

ribbed

Furrow

N furrow, groove, rut, sulcus, scratch, streak, striae, crack, score, incision, slit, chamfer, fluting, corduroy road, cradle hole, channel, gutter, trench, ditch, dike, dyke, moat, fosse, trough, kennel, ravine, tajo, thank-ye-ma'am, furrowed, ribbed, striated, sulcated, fluted, canaliculated, bisulcous, bisulcate, bisulcated, canaliferous, trisulcate, corduroy, unisulcate, costate, rimiform.