| 释义 |
acellular, a. Biol.|eɪˈsɛljʊlə(r)|
[f. a- 14 + cellular a.]
Having no cells, not consisting of or divided into cells; spec. (a) composed of a single cell, unicellular; (b) multinucleate, syncytial.
1940L. H. Hyman Invertebrates I. iii. 44 We prefer to refer to the Protozoa as acellular, rather than as unicellular animals, that is, animals whose body substance is not partitioned into cells. 1960Nature 12 Mar. 780/1 (heading) A mating-type system in an acellular slime-mould. 1974D. & M. Webster Compar. Vertebr. Morphol. viii. 162 They [sc. most fish scales] are composed of two thin layers: a somewhat bonelike, but acellular osteoid layer and an inner, very dense fibrous layer. 1984Acta Cytol. XXVIII. ii. 118 (heading) Acellular bodies in sputum. |