aposematic
definition
having bright colors or patterns as a warning to potential predators
example
The brightly colored poison dart frog is a classic example of an aposematic organism that warns predators of its toxicity.
synonyms
warningwarning-coloredtoxic-looking
word origin — from the prefix 'apo-' meaning 'away from' and 'sematic' derived from the Greek 'sematicos' meaning 'significant', referring to its function as a warning signal.