(idiomatic, informal) A dimwit, a fool / A melon-headed whale

A plant of the species Cucumis metulifer, bearing a cucumber-like fruit.

Any of the genus Melocactus of cacti, distinguished when mature by their cephalium, a wool- and bristle-coated structure at the apex, containing a mass of areoles from which the small flowers grow.

plural of melon baller

Synonym of Santa Claus melon.

Cucumis melo var. saccharinus, a particularly tender and sweet cultivar of muskmelon close to Cucumis melo var. reticulatus of rare commercial application for preserves.

A South American plant in the nightshade family Solanaceae, cultivated for its melon-like fruit, Solanum muricatum.

(Australia) A small hole or concavity in the landscape where rainwater gathers.

The citron melon

An African melon, Citrullus caffer