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Meaning of alarm substance | Babel Free

Noun CEFR B2

Definitions

A chemical emitted from the skin of a fish after an injury that warns nearby fish of danger.

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

alarm system alarm-bell Alarmclock Alarmed Alarmer alarmin

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