triploblastic

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trip·lo·blas·tic

(trip'lō-blas'tik),
Formed of three primary germ layers (ectoderm, mesoderm, endoderm), or containing tissue derived from all three layers.
[G. triploos, threefold, + blastos, germ]
Farlex Partner Medical Dictionary © Farlex 2012

triploblastic

(trĭp′lō-blăs′tĭk)
adj.
Having body tissues derived from three germ layers, the endoderm, mesoderm, and ectoderm, seen in all multicellular animals except certain invertebrates such as the cnidarians and sponges.

trip′lo·blas′ty n.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

triploblastic

Of an embryo, having three primitive germ layers from each of which particular parts of the body develop.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

triploblastic

having three primary embryonic cell layers, ECTODERM, MESODERM and ENDODERM. All animals except PROTOZOANS, SPONGES and COELENTERATES are triploblastic.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005