v.
/
ˈkjuːmjʊleɪt/
- accumulate or be accumulated.
-
[as adj. cumulated]
Chemistry denoting two double bonds attached to the same carbon atom.
n.
/
ˈkjuːmjʊlət/
Geology an igneous rock formed by gravitational settling of particles in a magma.
Derivative
Etymology
C16 (in the sense ‘gather in a heap’): from L. cumulat- cumulare, from cumulus ‘a heap’.