A tropical plant (Ananassa sativa); also, its fruit; -- so called from the resemblance of the latter, in shape and external appearance, to the cone of the pine tree. Its origin is unknown, though conjectured to be American.
- A tropical American plant (Ananas comosus) having large swordlike leaves and a large, fleshy, edible, multiple fruit with a terminal tuft of leaves.
- The fruit of this plant.
- Slang A hand grenade.