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| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| the offspring of a zebra and a donkey. |
organ or·gan (ôr'gən)
n.
A differentiated part of the body that performs a specific function.
| organ (ôr'gən) Pronunciation Key
A distinct part of an organism that performs one or more specialized functions. Examples of organs are the eyes, ears, lungs, and heart of an animal, and the roots, stems, and leaves of a plant. |
Part of a living thing, distinct from the other parts, that is adapted for a specific function. Organs are made up of tissues and are grouped into systems, such as the digestive system.
Note: The brain, liver, and skin are organs.