A piece of exercise equipment used to tone the thighs, especially aimed at women.

plural of mastax

(zoology) The pharynx of a rotifer. It usually contains four horny pieces. The two central ones form the incus, against which the mallei, or lateral ones, work so as to crush the food.

plural of master plan

(politics, public policy) A policy of deliberate inactivity, carried out with diplomatic skill, so as to preserve a predominant influence without risking anything.

(zoology) Any fish in the family Mastacembelidae.

plural of mastacembelid

plural of mastectomee

(military, US) A non-commissioned officer of rank E-9 in the United States Marine Corps, ranking above a master sergeant/first sergeant and below a warrant officer. It is equal in grade to sergeant major

plural of master gunnery sergeant