a. Consisting of or making up a large mass; bulky, heavy, and solid: a massive piece of furniture. See Synonyms at heavy.
b. Physics Having relatively high mass: a massive particle.
a. Large or imposing, as in quantity, scope, degree, intensity, or scale: "Local defense must be reinforced by the further deterrent of massive retaliatory power" (John Foster Dulles).
b. Large in comparison with the usual amount: a massive dose of a drug.
c. Affecting a large area of bodily tissue; widespread and severe: massive gangrene.
a. Mineralogy Lacking internal crystalline structure; amorphous.
b. Geology Without internal structure or layers and homogeneous in composition. Used of a rock.
[Middle English massif, from Old French, from masse, mass; see MASS.]
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