> as lemmas
unicostate
unicostate adj. 
/ˌjuːnᵻˈkɒstət/, /ˌjunəˈkɑstət/ Botany and Zoology having one rib.
Brit. /ˌjuːnᵻˈkɒsteɪt/
, /ˌjuːnᵻˈkɒsteɪt//ˌjuːnᵻˈkɒstət/U.S. /ˌjunəˈkɑˌsteɪt/
, /ˌjunəˈkɑˌsteɪt//ˌjunəˈkɑstət/ΚΠ
1849 J. H. Balfour Man. Bot. 72 Reticulated Venation. i. Unicostate... A single rib or costa in the middle (midrib).
1852 J. D. Dana U.S. Exploring Exped.: Crustacea Pt. I 335 Hand..faintly uni-costate towards lower part.
<
as lemmas