Main Entry: nim·bus

Pronunciation: \ˈnim-bəs\

Function: noun

Inflected Form(s): plural nim·bi \-ˌbī, -ˌbē\ or nim·bus·es

Etymology: Latin, rainstorm, cloud; probably akin to Latin nebula cloud — more at nebula

Date: 1616

1 a : a luminous vapor, cloud, or atmosphere about a god or goddess when on earth b : a cloud or atmosphere (as of romance) about a person or thing
2 : an indication (as a circle) of radiant light or glory about the head of a drawn or sculptured divinity, saint, or sovereign
3 a : a rain cloud b : thunderhead; also : cumulus 2

[nimbus illustration]