- protoplasm (n.)
- 1848, from German Protoplasma (1846), used by German botanist Hugo von Mohl (1805-1872), on notion of "first-formed," from Greek proto- "first" (see proto-) + plasma "something molded" (see -plasm).
The word was in Late Latin with a sense of "first created thing," and it might have existed in ecclesiastical Greek in a different sense. It was used 1839 by Czech physiologist Johannes Evangelista Purkinje (1787-1869) to denote the gelatinous fluid found in living tissue. The modern meaning is a refinement of this. This word prevailed, though German language purists preferred Urschleim.
- 1. Others are associated with the protoplasm of the cell.
- 2. Each cell possesses a nucleus imbedded in protoplasm.
- 3. This release of the products of cellular protoplasm to the extracellular fluid accounts for several events.
- 4. They use the protoplasm in the vat as an energy source.
- 5. The streaming rotary motion of protoplasm within certain cells and one - celled organisms.
- '胞'.''''.'质'. ''环流在某些细胞或 单细胞 微生物中的细胞质的环状流动.
[ protoplasm 造句 ]