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lichen

lichen

1 9.9
A skin disease with hard raised patches that often itch
  • noun
  • /ˈlaɪkən/
  • Specialized
translation icon : liquen
  • The human forms have grown horrific—their faces scrofulous with lichens, arms and legs scattered or stolen.
  • lichen planus

Examples

  • Furocoumarins are photosensitizing chemicals; lichen spinulosus is a histologic feature of the comedones in their presence.

    Blog text (21)
  • OK so now he has a pink nose and a pink lichen That that is our final answer.

  • Lichen spinulosus is expressed in a number of pathways and in cells for 48 to 72 hours.

    Blog text (21)
  • North Woods in autumn carry a heavy burden now. Moss and lichen thrive here, hidden under leaves where alien chips of metal and debris share this place as smoke rises; a gray steam-like fog above the tops of broken trees.

    Blog text (31)
  • Lichen spinulosus produces phytophotodermatitis, including temporally ill-defined, hypopigmented macules and disruption to the normal.

    Blog text (21)
  • Melville, as the namer of "Broadhall," was the small stuff of local literary legend, the sort that had begun to stick to his Berkshire behavior like lichens.

    Fiction book (2002)
  • The doctor explained that lichen planus can cause itchy, inflamed lesions on the skin.

  • After several visits, she was diagnosed with lichen sclerosus, which required ongoing treatment.

  • Many patients with lichen have reported relief after following a strict skincare regimen.

Synonyms

skin rash
vslichen
4 3.0

A red, itchy area on the skin that may have spots or bumps

is characterized by hard thick clustered lesions rather than red inflammation
dermatosis
vslichen
  • Specialized
1 8.8

A skin disease that causes spots or bumps that are usually not red

is a specific disorder with hard thick clustered lesions resembling a plant

Compounds

A hanging grey-green growth on tree branches that looks like a beard

lichen planus
  • Specialized
9.6

A skin disease that causes shiny, flat, purple, itchy bumps on the wrists or forearms

lichen ruber planus
  • Specialized
9.9

A skin problem that causes shiny flat purple itchy bumps on the arms and thighs

A crusty or bushy plant-like growth in deserts that people and animals eat

horsehair lichen
  • Specialized
9.9

A plant-like growth with long thin threads that hang from tree branches

horsetail lichen
  • Specialized
9.9

A living growth of thin, hair-like threads that hangs from tree branches

Iceland lichen
  • Specialized
9.9

A pale, branched plant-like growth that grows on rocks in cold, high places and is used as food or medicine

reindeer lichen
  • Specialized
9.3

A grey bushy growth like a small plant that covers the tundra and feeds reindeer

Surface Forms

lichen singular
lichens plural

Etymology

Lichen for a skin disease comes from the same Greek leichēn meaning 'a hard patch', so doctors used the word for thick, grouped patches on the skin because they look like the plant's growths.