—adj. 1. very large in scale, scope, or capability.
2. of or pertaining to macroeconomics.
—n. 1. anything very large in scale, scope, or capability.
2. Photog.a macro lens.
3. Also called macroinstruction.Computers.an instruction that represents a sequence of instructions in abbreviated form.
a combining form meaning “large,” “long,” “great,” “excessive,” used in the formation of compound words, contrasting with micro-: macrocosm; macrofossil; macrograph; macroscopic.Also,esp. before a vowel,macr-.