/ Dictionary / Index L lopper: Meaning and Definition of Find definitions for: lop•per Pronunciation: (lop'ur), [key] — n. a person or thing that lops. lop•per Pronunciation: (lop'ur), [key] — v.i., v.t. Scot. and North Central U.S. (esp. of milk) to curdle or coagulate. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: lopper (Thesaurus) lopolith lopping shears Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language