(organic chemistry) An acid found in some lichens.

(biology) The theory that an organism develops by differentiation from an unstructured egg rather than by simple enlarging of something preformed.

(biochemistry) A glycoside isolated from the leaves of Hovenia dulcis Thunb., the Japanese raisin tree. It is an antisweet compound.

(archaic) Of or pertaining to the most distant point from one's point of reference.