tricostate
Also found in: Medical.
tri·cos·tate
(trī-kŏs′tāt′)adj.
Having three costae.
tricostate
(traɪˈkɒsteɪt)adj
(Biology) biology having three ribs or riblike parts: tricostate leaves.
[C19: from tri- + costate]
tri•cos•tate
(traɪˈkɒs teɪt, -ˈkɔ steɪt)adj.
(of a plant or animal) having three ribs, costae, or raised lines.