organelle

• POS: Noun
• HYPHEN: or=gan=elle

CIDE DICTIONARY

organelle, n. 

 a specialized part of a cell performing a specific function, usually visible under the microscope as a distinct object; it is analogous to an organ{2}, but on a microscopic scale.  [WordNet 1.5]

OXFORD DICTIONARY

organelle, n. Biol. any of various organized or specialized structures which form part of a cell.

Etymology

mod.L organella dimin.; see ORGAN, -LE