# trica

> English word · Noun

## Definitions
1. An apothecium in certain lichens, having a spherical surface marked with spiral or concentric ridges and furrows.

## Etymology
Borrowed from New Latin trica, coined by Erik Acharius in his 1803 work Methodus qua omnes detectos Lichenes. Perhaps connected to Latin trīcae, although the semantic relationship is unclear.

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