Ricinulei
plural noun
Ric·i·nu·lei
ˌrisᵊnˈ(y)ülēˌī
: a small order of Arachnida comprising living and fossil forms with an oval hard body bearing a large movable hood that folds down in front over the mouthparts
ricinuleid noun or adjective
-ēə̇d
Word History
Etymology
New Latin, plural diminutive of Latin ricinus tick