1) Bodily cavity 2) Cavity 3) Cavum 4) Loculus 1) Loculus 
A locule (plural locules) or loculus (plural loculi) (the latter meaning `little place` in Latin) is a small cavity or compartment within an organ or part of an organism (animal, plant, or fungus). In angiosperms (flowering plants), the term locule usually refers to a chamber within an ovary (gynoecium or carpel) of the flower and fruits. Depend.....
A cavity. 
• (n.) A little hollow; a loculus.
A compartment of the ovary.
(from the article `Sapindales`) ...but in a few genera (e.g., Zanthoxylum, Rutaceae) there are separate simple pistils in the flower. The ovary is almost always superior and is ...
a cavity of the ovary which contains the ovules
A compartment of an anther or an ovary. ... (09 Oct 1997) ... 
a cavity of the ovary which contains the ovules
A chamber or cell, usually inside an ovary.
Loc'ule noun [ Confer French locule . See Loculus .] (Zoology) A little hollow; a loculus. 
Compartment or cell of a pistil or anther.
[n] - a small cavity or space within an organ or in a plant or animal
loculus noun a small cavity or space within an organ or in a plant or animal
a small compartment or chamber, as the pollen-containing cavity within an anther. Also called