Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of lichen is as below...

Spermogonium :: Spermogonium (n.) A conceptacle of certain lichens, which contains spermatia..

Areola :: Areola (n.) An interstice or small space, as between the cracks of the surface in certain crustaceous lichens; or as between the fibers composing organs or vessels that interlace; or as between the nervures of an insect's wing..

Lichenography :: Lichenography (n.) A description of lichens; the science which illustrates the natural history of lichens.

Ascus :: Ascus (n.) A small membranous bladder or tube in which are inclosed the seedlike reproductive particles or sporules of lichens and certain fungi.

Maplike :: Maplike (a.) Having or consisting of lines resembling a map; as, the maplike figures in which certain lichens grow..

Gonimous :: Gonimous (a.) Pertaining to, or containing, gonidia or gonimia, as that part of a lichen which contains the green or chlorophyll-bearing cells..

Tartareous :: Tartareous (a.) Having the surface rough and crumbling; as, many lichens are tartareous..

Roccellic :: Roccellic (a.) Pertaining to, or designating, a dibasic acid of the oxalic series found in archil (Roccella tinctoria, etc.), and other lichens, and extracted as a white crystalline substance C17H32O4..

Lichenographical :: Lichenographical (a.) Of or pertaining to lichenography.

Frond :: Frond (n.) The organ formed by the combination or union into one body of stem and leaf, and often bearing the fructification; as, the frond of a fern or of a lichen or seaweed; also, the peculiar leaf of a palm tree..

Cudbear :: Cudbear (n.) A lichen (Lecanora tartarea), from which the powder is obtained..

Cetrarin :: Cetrarin (n.) A white substance extracted from the lichen, Iceland moss (Cetraria Islandica). It consists of several ingredients, among which is cetraric acid, a white, crystalline, bitter substance..

Erythrine :: Erythrine (n.) A colorless crystalline substance, C20H22O10, extracted from certain lichens, as the various species of Rocella. It is a derivative of orsellinic acid. So called because of certain red compounds derived from it. Called also erythric acid..

Amphigenous :: Amphigenous (a.) Increasing in size by growth on all sides, as the lichens..

Erythrite :: Erythrite (n.) A colorless crystalline substance, C4H6.(OH)4, of a sweet, cooling taste, extracted from certain lichens, and obtained by the decomposition of erythrin; -- called also erythrol, erythroglucin, erythromannite, pseudorcin, cobalt bloom, and under the name phycite obtained from the alga Protococcus vulgaris. It is a tetrabasic alcohol, corresponding to glycol and glycerin..

Hyphae :: Hyphae (n. pl.) The long, branching filaments of which the mycelium (and the greater part of the plant) of a fungus is formed. They are also found enveloping the gonidia of lichens, making up a large part of their structure..

Treebeard :: Treebeard (n.) A pendulous branching lichen (Usnea barbata); -- so called from its resemblance to hair.

Usnic :: Usnic (a.) Pertaining to, or designating, a complex acid obtained, as a yellow crystalline substance, from certain genera of lichens (Usnea, Parmelia, etc.)..

Fibrillose :: Fibrillose (a.) Covered with hairlike appendages, as the under surface of some lichens; also, composed of little strings or fibers; as, fibrillose appendages..

Lichened :: Lichened (a.) Belonging to, or covered with, lichens..

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