The Collaborative International Dictionary of English.
laticostate — adj. [L. latus, broad; costatus, ribbed] Broad ribbed … Dictionary of invertebrate zoology
laticostate — a. having broad ribs. ♦ latidentate, a. having broad teeth. ♦ latipennate, a. having broad wings. ♦ latirostrate, a. having broad beak … Dictionary of difficult words