(military, slang) a style of soldier's helmet resembling the helmet used by U.S. soldiery from WWII and the Korean and American-Vietnam Wars.

(mathematics) Any member of a certain group of polynomials remarkable in that the number of crossings of the x-axis in the unit interval does not go up as the degree of the polynomials goes up.

In a reprovable manner.

(organic chemistry) A polyhydroxy cyclic alcohol, 2-0-methyl-chiro-inositol, obtained from the latex of the rubber tree as a starting point in the synthesis of several pharmaceuticals