Lichen

Definition of Lichen

Li´chen   Pronunciation: lī´kĕn; 277
n.1.(Bot.) One of a class of cellular, flowerless plants, (technically called Lichenes), 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 rock moss or tree moss.
2.(Med.) A name given to several varieties of skin disease, esp. to one characterized by the eruption of small, conical or flat, reddish pimples, which, if unchecked, tend to spread and produce great and even fatal exhaustion.

Related Words

acne, acne vulgaris, algae, autophyte, bean, bracken, brown algae, climber, conferva, confervoid, creeper, dermamycosis, dermatitis, dermatosis, diatom, eczema, elephantiasis, epithelioma, erysipelas, erythema, exanthem, fern, fruits and vegetables, fucus, fungus, grapevine, green algae, gulfweed, heat rash, herb, herpes, herpes simplex, herpes zoster, heterophyte, hives, impetigo, itch, ivy, jungle rot, kelp, legume, lentil, leprosy, liana, lichen primus, liverwort, lupus, lupus vulgaris, miliaria, mold, moss, mushroom, parasite, parasitic plant, pea, pemphigus, perthophyte, phytoplankton, planktonic algae, plant families, prickly heat, pruigo, pruritus, psora, puffball, pulse, red algae, ringworm, rockweed, rust, saprophyte, sargasso, sargassum, scabies, sea lentil, sea moss, sea wrack, seaweed, shingles, skin cancer, smut, succulent, tetter, toadstool, vetch, vine, wort, wrack
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Lice
licence
Licensable
License
Licensed
Licensed victualer
Licensee
Licenser
Licensure
Licentiate
Licentious
Lich
Lich fowl
Lich gate
lich owl
Lich wake
Lich wall
Lich way
Lichanura
lichee
-Lichen-
Lichened
Lichenic
Lichenic acid
Licheniform
Lichenin
Lichenographic
Lichenographist
Lichenography
Lichenologist
Lichenology
Lichenous
Lichi
Lichwale
Lichwort
Licit
Licitation
Lick
Lick-spigot
Lick-spittle
Licker
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