(biol.) a very small, complex, single unit of protoplasm, usually with a nucleus, cytoplasm, and an enclosing membrane; a single-cell.

(bot.) the lowest and simplest of animals, made up of a single cell, that multiplies by fission; a protozoan.

having only one eye; one-eyed.

a one-eyed person or animal - a) Śiva, b) a crow; c) Śukra, the preceptor of demons.