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lichen

[ˈlaɪkən]

lichen Definition

  • 1a simple slow-growing plant that typically forms a low crusty, leaflike, or branching growth on rocks, walls, and trees.
  • 2a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.

Using lichen: Examples

Take a moment to familiarize yourself with how "lichen" can be used in various situations through the following examples!

  • Example

    The lichen on the old stone wall was a beautiful shade of green.

  • Example

    Lichens are often used as bioindicators of air pollution.

  • Example

    The symbiotic relationship between the fungus and algae in lichens is fascinating.

lichen Synonyms and Antonyms

Synonyms for lichen

Phrases with lichen

  • a type of lichen that forms a thin, tightly-adhering crust on the surface it grows on

    Example

    The crustose lichen on the rock was so thin it was almost invisible.

  • a type of lichen that has a leafy appearance with distinct upper and lower surfaces

    Example

    The foliose lichen growing on the tree trunk was a bright green color.

  • a type of lichen that has a shrubby or bushy appearance

    Example

    The fruticose lichen hanging from the tree branches looked like a miniature forest.

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Summary: lichen in Brief

Lichen [ˈlaɪkən] refers to a slow-growing plant that forms a low crusty, leaflike, or branching growth on rocks, walls, and trees. It can also refer to a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship. Lichens come in different forms such as crustose, foliose, and fruticose. They are often used as bioindicators of air pollution.