English dictionary
lichen
/'l/aI/k/@/n/
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
-
any of several eruptive skin diseases characterized by hard thick lesions grouped together and resembling lichens growing on rocks
Source: WordNet 3.0
-
any thallophytic plant of the division Lichenes; occur as crusty patches or bushy growths on tree trunks or rocks or bare ground etc.
Source: WordNet 3.0
-
One of a class of cellular, flowerless plants, (technically called <i>Lichenes</i>), having no distinction of leaf and stem, usually of scaly, expanded, frond-like forms, but sometimes erect or pendulous and variously branched. They derive their nourishment from the air, and generate by means of spores. The species are very widely distributed, and form irregular spots or patches, usually of a greenish or yellowish color, upon rocks, trees, and various bodies, to which they adhere with great tenacity. They are often improperly called <i>rock moss</i> or <i>tree moss</i>.
Source: webster1913