lichen
UK/'laikәn/US
TOEFLC2
Definitions
n.
A slow-growing organism formed by a symbiotic association of algae and fungi, often appearing as crusty patches on rocks or trees
地衣；苔藓；（医）苔癣病
Root Breakdown
Loanwordlichenother
=lichen
Example Sentences
- 1.
Lichen grows slowly on rocks and tree bark in forests.
- 2.
Scientists study lichen to monitor air pollution levels.