13-Letter Words Containing: O,S,P,E,R,M,S

• a motile male gamete of a plant such as an alga or fern or gymnosperm

• any branch of psychology concerned with psychological measurements

• the male reproductive cell; the male gamete

• a hygrometer consisting of a dry-bulb thermometer and a wet-bulb thermometer; their difference indicates the dryness of the surrounding air

• a gaseous layer of the sun's atmosphere (extending from the photosphere to the corona) that is visible during a total eclipse of the sun

• any branch of psychology concerned with psychological measurements

• an art movement early in the 20th century; the artist's subjective expression of inner experiences was emphasized; an inner feeling was expressed through a distorted rendition of reality