Meaning & use
invasive species
A non-native organism that spreads rapidly in a new environment and causes ecological or economic harm.
See it in a sentence
The lake's native fish declined sharply after an invasive species was introduced accidentally.
Volunteers pulled up an invasive species of weed that was choking the wetland plants.
A note on using this word
Not every introduced species is invasive; the term specifically implies measurable harm to the ecosystem.
Words with a similar meaning
This term is best learned through its definition and examples.
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Words with an opposite meaning
native species
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