raphid1
/ˈreɪfɪd/Botany
noun
= raphide.
Origin
Mid 19th century. Either an alteration of raphide or independently from its etymon French raphide.
raphid2
/ˈreɪfɪd/Botany
adjective
Of diatoms or their valves: having a raphe.
Origin
1980s; earliest use found in Proceedings of the Royal Society of London. From raphe + -id.