cumulus
/ˈkjuːmjʊləs/Definitions
1. noun
A type of cloud characterized by a puffy, rounded shape and a flat base, often seen on warm, sunny days.
“The hikers marveled at the majestic cumulus clouds drifting lazily across the sky.”
2. adjective
Having a rounded or swollen shape, often referring to clouds or clouds-like formations.
“The cumulus hills rose gently from the horizon.”