Definition of "pineapple"

A tropical plant, Ananas comosus, native to South America, having thirty or more long, spined and pointed leaves surrounding a thick stem.  examples

The ovoid fruit of the pineapple plant, which has very sweet white or yellow flesh, a tough, spiky shell and a tough, fibrous core.  examples

(uncountable) The flesh of a pineapple fruit used as a food item.  quotations  examples

(slang) An Australian fifty dollar note.

A web burrfish (Chilomycterus antillarum, syn. Chilomycterus geometricus)  examples

A light yellow colour, like that of pineapple flesh (also called pineapple yellow).  examples

(obsolete or dialectal) A pinecone; the cone of the fir.

A decorative carving of a pineapple fruit used as a symbol of hospitality.  examples

(slang) A hand grenade. (From the similarity to the shape of a pineapple fruit.)

A hairstyle consisting of a ponytail worn on top of the head, imitating the leaves of a pineapple.  examples