EUTROPHY - healthy nutrition - pl. EUTROPHIES - adj. EUTROPHIC

PINACOID - a crystal face - also PINAKOID 


ECHINOID - a sea urchin


CONIDIUM - a fungus spore - pl. CONIDIA


MUCINOID - adj. like MUCIN -  any of a group of glycoproteins


ONCIDIUM - a tropical American orchid - pl. ONCIDIUMS


OPHIDIAN - any member of the snake genus - pl. OPHIDIANS