Green broadbill (Mỏ rộng xồm, Calyptomena viridis) also known as the lesser green broadbill
Formerly classified in the family Eurylaimidae, a group of closely related birds that share the name "broadbill".

The green broadbill (Calyptomena viridis) is a small bird in the family Calyptomenidae.
The bird is found in forests of Borneo, Sumatra, and the Malay Peninsula.

Calyptomenidae is from Greek:
 Kaluptos (καλυπτός): Meaning "covered," "concealed," or "hidden" (referring to how the birds' bills are nearly concealed by their forehead feathers).
 Mēnē (μήνη): Meaning "moon".

The genus name Calyptomena combines Ancient Greek kaluptos meaning "covered", and mene meaning "moon".

In Latin, viridis is a third-declension adjective meaning "green", "fresh", or "youthful". It originates from the verb vireo (to be green or to flourish).