noun
- Plural of endosarc; the inner protoplasmic layer of certain protozoans, especially ciliates, that lies beneath the ectosarc.
Usage: biology; technical; chiefly historical or specialized in protozoology
Examples
- The endosarcs of ciliated protozoans contain the nucleus and most organelles.
- Early microscopists distinguished between the ectosarc and endosarcs in their observations of single-celled organisms.
- The endosarcs play a crucial role in the metabolism of these microscopic creatures.