/ Dictionary / Index B brown-tail moth: Meaning and Definition of Find definitions for: brown'-tail moth' Pronunciation: (broun'tāl"), [key] a white moth, Nygmia phaerrhoea, having a brown tuft at the end of the abdomen, the larvae of which feed on the foliage of various shade and fruit trees. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Brown Swiss brown thrasher Related Content Daily Word Quiz: torrid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language