15-Letter Words Containing: P,R,O,L,E,G,S,_

• a measuring instrument for measuring changes in volume of a part or organ or whole body (usually resulting from fluctuations in the amount of blood it contains)

• simplify to an excessive degree

• the branch of psychology that is concerned with the physiological bases of psychological processes

• the study of the whorls and loops and arches in the fingertips and on the palms of the hand and the soles of the feet

• in non-flowering plants, a sporophyll that bears only megasporangia