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

crustose lichen, foliose lichen, fruticose lichen

Formal and Informal Expressions of lichens

In different contexts, you can replace 'lichens' with suitable alternatives. In a more formal setting, 'lichenized fungi' is apt. In informal speech or writing, 'mossy stuff' is a commonplace synonym.

lichens: Explore its Definition & Usage

lichens 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 lichens: Examples

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

Example
The lichens on the tree bark were a sign of clean air.
Example
Lichens are used as bioindicators of air pollution.
Example
The lichens growing on the rocks were beautiful to look at.

lichens Synonyms and Antonyms

Synonyms for lichens

Phrases with lichens

crustose lichen
a type of lichen that forms a crust-like layer on the surface it grows on
Example
The crustose lichen was covering the entire rock surface.
foliose lichen
a type of lichen that has a leaf-like structure with distinct upper and lower surfaces
Example
The foliose lichen was growing on the tree trunk.
fruticose lichen
a type of lichen that has a shrub-like or bushy structure
Example
The fruticose lichen was growing on the branches of the tree.

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Summary: lichens in Brief

Lichens [ˈlaɪkənz] are composite organisms that arise from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship. They can form a low crusty, leaflike, or branching growth on rocks, walls, and trees. Lichens are used as bioindicators of air pollution and can be classified into three types: crustose, foliose, and fruticose.