| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024li•chen /ˈlaɪkən/USA pronunciation n. [countable]- Fungian organism made of a fungus and an alga, most commonly forming crusty patches on rocks and trees.
WordReference Random House Unabridged Dictionary of American English © 2024li•chen (lī′kən),USA pronunciation n. - Fungiany complex organism of the group Lichenes, composed of a fungus in symbiotic union with an alga and having a greenish, gray, yellow, brown, or blackish thallus that grows in leaflike, crustlike, or branching forms on rocks, trees, etc.
- Pathologyany of various eruptive skin diseases.
v.t. - to cover with or as if with lichens.
- Greek leiché̄n
- Latin līchēn
- 1595–1605
Collins Concise English Dictionary © HarperCollins Publishers:: lichen /ˈlaɪkən; ˈlɪtʃən/ n - an organism that is formed by the symbiotic association of a fungus and an alga or cyanobacterium and occurs as crusty patches or bushy growths on tree trunks, bare ground, etc. Lichens are now classified as a phylum of fungi (Mycophycophyta)
Etymology: 17th Century: via Latin from Greek leikhēn, from leikhein to lickˈlichened adj ˈlichenous, ˈlichenˌose adj |