/nəˈvikyələr/
Adjective
1. Shaped like a boat. (wiktionary.org)
2. Cymbiform; scaphoid; as, the navicular glumes of most grasses. (biology-online.org)
Noun, pl. naviculars
1. (Anatomy) A navicular bone. (wiktionary.org)
2. The largest wrist bone on the thumb side. (wordnetweb.princeton.edu)
3. A boat-shaped bone in the ankle or wrist, esp. that in the ankle between the talus and the cuneiform bones. (Google Dictionary)
4. A disease affecting the navicular bone, or the adjacent parts, in a horse’s foot. (biology-online.org)
Word origin: From Late Latin navicularis “pertaining to a boat,” from navicula, diminutive of navis “ship”