/ Dictionary / Index L lobster-tail helmet: Meaning and Definition of Find definitions for: lob'ster-tail hel"met Pronunciation: (lob'stur-tāl"), [key] — Armor. Armor. a burgonet fitted with a long, articulated tail of lames for protecting the nape of the neck, worn by cavalry in the 17th century. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lobster shift lobster thermidor Related Content Daily Word Quiz: jugular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language