What is "collective fruit"

Collective \Col*lect"ive\, a. [L. collectivus: cf. F. collectif.]

1. Formed by gathering or collecting; gathered into a mass, sum, or body; congregated or aggregated; as, the collective body of a nation.
   --Bp. Hoadley.

2. Deducing consequences; reasoning; inferring. [Obs.] ``Critical and collective reason.''
   --Sir T. Browne.

3. (Gram.) Expressing a collection or aggregate of individuals, by a singular form; as, a collective name or noun, like assembly, army, jury, etc.

4. Tending to collect; forming a collection.

   Local is his throne . . . to fix a point, A central point, collective of his sons.
   --Young.

5. Having plurality of origin or authority; as, in diplomacy, a note signed by the representatives of several governments is called a collective note.

   Collective fruit (Bot.), that which is formed from a mass of flowers, as the mulberry, pineapple, and the like; -- called also multiple fruit.
   --Gray.

n. (context botany English) Any fruit formed from a mass of flowers, such as the mulberry or pineapple.