luniformadj.

/ˌl(j)uːnɪfɔːm/Etymology: < Latin lūna moon: see -form comb. form2. Compare French luniforme.
1826 W. Kirby & W. Spence IV. 268 Luniform, whose longitudinal section is lunate.
This entry has not yet been fully updated (first published 1903; most recently modified version published online March 2020).