clusˈter-bean noun

The guar (qv)

cluster bomb noun

A bomb that opens on impact to throw out a number of small bombs

clusˈter-cup noun

An aecidium

clustered column noun

A pier which consists of several columns or shafts clustered together

cluster fly noun

A large dark-brown fly related to the bluebottle, that gathers in large numbers in attics, etc during autumn

cluster graft noun (surgery)

An organ transplant in which the patient receives more than one organ

cluster marketing noun

Advertising, etc aimed at people with specific characteristics

cluster physics singular noun

The physics of very small numbers of atoms

cluster pine noun

The pinaster (Pinus pinaster), a pine with clustered cones