| NOUN | body | organelle, cell organelle, cell organ | a specialized part of a cell |
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| Meaning | A specialized part of a cell; analogous to an organ. | |
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| Example | "the first organelle to be identified was the nucleus" | |
| Synonyms | cell organelle, cell organ | |
| Part of | cell | (biology) the basic structural and functional unit of all organisms |
| Narrower | centriole | One of a pair of small cylindrical cell organelles near the nucleus in animal cells |
| cilium | A hairlike projection from the surface of a cell | |
| lysosome | An organelle found in the cytoplasm of most cells (especially in leukocytes and liver and kidney cells) | |
| mitochondrion, chondriosome | An organelle containing enzymes responsible for producing energy | |
| nucleolus, nucleole | A small round body of protein in a cell nucleus | |
| nucleus, cell nucleus, karyon | A part of the cell containing DNA and RNA and responsible for growth and reproduction | |
| ribosome | An organelle in the cytoplasm of a living cell | |
| Broader | organ | A fully differentiated structural and functional unit in an animal that is specialized for some particular function |