# trichobothrium

> English word · Noun

## Definitions
1. An elongate external seta, present in many arachnids and various orders of insects, including Hemiptera and Thysanoptera. They function in the detection of airborne vibrations and air currents, including near-field sounds of central importance to their hearing and communication.

## Etymology
From tricho- + bothrium.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/trichobothrium