Definition of "longicorn" [lon•gi•corn]

• See long-horned beetle. (noun)
• Having long antennae. (adjective)
• Of or belonging to the family Cerambycidae, which includes the long-horned beetles. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Invertebrates, especially insects, are quite diverse, and, in the uplands of the Caucasus, one can observe many examples of the varied insect life, including an endemic butterfly (Parnassius nordmanni) and the Rosalia longicorn beetle (Rosalia alpine, VU)."
• "The rain has washed the ground away from under its off legs, so that it tilts; and there were quantities of large longicorn beetles about during the night — the sort with spiny backs; they kept on getting themselves hitched on to my blankets and when I wanted civilly to remove them they made a horrid fizzing noise and showed fight — cocking their horns in a defiant way."
• "What formerly would have been a repulsive object (such as a great longicorn or beetle) is worn with ease by the belles of our time."