— magmatic /mag mat"ik/ , adj. — magmatism , n.
/mag"meuh/ , n. , pl. magmas, magmata /-meuh teuh/ .
1. Geol. molten material beneath or within the earth's crust, from which igneous rock is formed.
2. any crude mixture of finely divided mineral or organic matter.
3. Chem. , Pharm. a paste composed of solid and liquid matter.
[ 1400-50; late ME mágma kneaded mass, salve, equiv. to mag- (base of mássein to knead, press; see MASS) + -ma n. suffix of result ]