• synonyms


noun Biology.
  1. the ectoplasm of a protozoan (opposed to endosarc).
Show More

Origin of ectosarc

First recorded in 1875–80; ecto- + -sarc
Related formsec·to·sar·cous, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for ectosarc

Historical Examples of ectosarc

  • Note also many minute oval sacs lying side by side in the ectosarc.

    Elementary Zoology, Second Edition

    Vernon L. Kellogg

  • The cytoplasm is very highly differentiated: especially the ectoplasm or ectosarc.

British Dictionary definitions for ectosarc


  1. zoology the ectoplasm of an amoeba or any other protozoan
Show More
Derived Formsectosarcous, adjective

Word Origin for ectosarc

C19: ecto- + -sarc, from Greek sarx flesh
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012