/nuːˈstɒnɪk/ (NEW-ston-ik)

Definitions

1. adjective

Relating to or inhabiting fresh water, especially lakes or rivers.

“The neustonic organisms in the lake’s ecosystem play a vital role in its balance.”

2. noun

An organism that lives in fresh water, especially lakes or rivers.

“Some examples of neustonic organisms are certain species of fish and mollusks.”

3. adverb

Living or occurring in fresh water.

“The neustonic creatures in the river are very diverse.”