1. Devoid of cells. SYN: noncellular (2). 2. A term applied to unicellular organisms that do not become multicellular and are complete within a single cell unit; frequently applied to protozoans to emphasize their complete organization within a single cell. [G. a- priv. + L. cellula, a small chamber]

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acel·lu·lar (')ā-'sel-yə-lər adj
1) containing no cells <\acellular vaccines>
2) not divided into cells: consisting of a single complex cell used esp. of protozoans and ciliates

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acel·lu·lar (a-selґu-lər) not made up of or containing cells.

Medical dictionary. 2011.

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  • acellular — adj. 1. 1 not containing cells {cellular} Syn: cell free [WordNet 1.5] 2. not made up of or divided into cells {cellular} Syn: noncellular [WordNet 1.5] 3. occurring outside of cells or without the participation of cells. Opposite of {cellular}.… …   The Collaborative International Dictionary of English

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  • acellular — adjective Date: 1940 1. containing no cells < acellular vaccines > 2. not divided into cells ; consisting of a single complex cell used especially of protozoa and ciliates …   New Collegiate Dictionary

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  • acellular — /ay sel yeuh leuhr/, adj. 1. being without cells. 2. composed of tissue not divided into separate cells, as striated muscle fibers. [1935 40; A 6 + CELLULAR] * * * …   Universalium

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