IPA: /ˈfjuːm.jʊ.ləs/
KK: /fjuːˈmjuːləs/
A very thin cloud that looks like a veil, often made of tiny water droplets from a rising plume, such as from a cooling tower.
The sky was filled with fumulus clouds, creating a delicate veil over the landscape.
This word originates from Latin 'fumulus', meaning a small or thin smoke or vapor. The term is derived from 'fumus' (meaning smoke).
Think of 'fumus' which means smoke, and remember that 'fumulus' refers to a small or thin smoke.