1. A narrow strip of ribbon or similar material, often worn as a headband.
2. also fi·let (fĭ-lā, fĭlā′)
a. A strip or compact piece of boneless meat or fish, especially the beef tenderloin.
b. A boneless strip of meat rolled and tied, as for roasting.
a. A thin flat molding used as separation between or ornamentation for larger moldings.
b. A ridge between the indentations of a fluted column.
4. A narrow decorative line impressed onto the cover of a book.
5. Heraldry A narrow horizontal band placed in the lower fourth area of the chief.
6. Anatomy A loop-shaped band of fibers, such as the lemniscus.
tr.v. fil·let·ed, fil·let·ing, fil·lets
1. To bind or decorate with or as if with a fillet.
2. also fi·let (fĭ-lā, fĭlā′) To slice, bone, or make into fillets.
[Middle English filet, from Old French, diminutive of fil, thread, from Latin fīlum; see gwhī- in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The American Heritage Dictionary Blog
Check out our blog, updated regularly, for new words and revised definitions, interesting images from the 5th edition, discussions of usage, and more.