Any of many symbiotic organisms, being associations of algae and fungi, often found as white or yellow-to-blue–green patches on rocks, old walls, etc.

(mycology, of a fungus) Adapted to live as a symbiont in a lichen.

simple past tense and past participle of lichenize

(organic chemistry) Any salt or ester of lichenic acid

Relating to, or obtained from lichens

(biology) The symbiotic relationship that gives rise to a lichen.

plural of lichenate

Covered with lichen.

plural of lichenization

(lichenology) The process by which a fungus becomes a mycobiont of a lichen. / (dermatology) Synonym of lichenification.