13-Letter Words Containing: O,R,S,H,I,P,S

• The scientific study of psychology and motivation in history.

• use an apostrophe

• similarity of form

• failure of one or both testes to move into the scrotum as the male fetus develops

• affecting the mind or mood or other mental processes

• any branch of psychology concerned with psychological measurements

• (genetics) the genetic variation within a population that natural selection can operate on

• (chemistry) the existence of different kinds of crystal of the same chemical compound

• (biology) the existence of two or more forms of individuals within the same animal species (independent of sex differences)