noun
- The outer layer of protoplasm in certain protozoans, especially in sarcodines; the ectoplasm.
Usage: biology; technical; rare
Examples
- The ectosarc of the amoeba is responsible for forming pseudopodia.
- Under the microscope, the ectosarc appeared as a thin, transparent outer layer.
- The ectosarc differs from the inner endosarc in its structural properties.
- Protozoologists study the ectosarc to understand protozoan locomotion.