| 释义 |
li·chen
I. \ˈlīkə̇n sometimes chiefly Brit ˈlichə̇n\ noun
(-s)
Etymology: Latin, from Greek leichēn, lichēn, probably from leichein to lick — more at lick
1. : any of numerous complex thallophytic plants that constitute the group Lichenes, that are made up of an alga and a fungus growing in symbiotic association on various solid surfaces (as rocks or the bark of trees), that consist of a branching thallus which is not differentiated into stem and leaves but which may be crustose, fruticose, or foliaceous and which contains algal gonidia embedded in a meshwork of fungal hyphae, and that include organisms important in the weathering and breakdown of rocks and some that are sources of foods or dyes — see ascolichenes, basidiolichenes; iceland moss, reindeer moss; archil, litmus
2. : any of several skin diseases characterized by the eruption of flat papules; especially : lichen planus
II. transitive verb
(-ed/-ing/-s)
: to cover over with or as if with lichens
< they lay till all their bones were … lichened into color with the crags — Alfred Tennyson >
< look down upon the lichened walls of this lovely building — R.M.Lockley >
< lichened history, an immeasurably vast continuity — R.L.Mittenbuhler > |