embryonic

[em-bree-on-ik]
adjective
1.
pertaining to or in the state of an embryo.
2.
rudimentary; undeveloped.
Also, embryonal [em-bree-uh-nl, em-bree-ohn-l] .


Origin:
1840–50; embryon- (see embryo) + -ic

embryonically, adverb
nonembryonal, adjective
nonembryonic, adjective
nonembryonically, adverb
pseudoembryonic, adjective
unembryonal, adjective
unembryonic, adjective


2. underdeveloped, immature, unfinished.
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World English Dictionary
embryonic or embryonal (ˌɛmbrɪˈɒnɪk, ˈɛmbrɪənəl)
 
adj
1.  of or relating to an embryo
2.  in an early stage; rudimentary; undeveloped
 
embryonal or embryonal
 
adj
 
embry'onically or embryonal
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

embryonic
1849, from Medical L. embryonem (see embryo) + -ic. Figurative use is from 1856.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

embryonic em·bry·on·ic (ěm'brē-ŏn'ĭk) or em·bry·on·al (ěm'brē-ə-nəl)
adj.
Of, relating to, or being an embryo.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
embryo   (ěm'brē-ō')  Pronunciation Key 
  1. An animal in its earliest stage of development, before all the major body structures are represented. In humans, the embryonic stage lasts through the first eight weeks of pregnancy. In humans, other placental mammals, and other viviparous animals, young born as embryos cannot thrive. In marsupials, the young are born during the embryonic stage and complete their development outside the uterus, attached to a teat within the mother's pouch.

  2. The developing young of an egg-laying animal before hatching.

  3. The sporophyte of a plant in its earliest stages of development, such as the miniature, partially developed plant contained within a seed before germination.


embryonic adjective (ěm'brē-ŏn'ĭk)
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Example sentences
Embryonic stem cells differ from adult stem cells, which are found in the
  various adult body tissues they help maintain.
The rub is that extracting embryonic stem cells involves destruction of human
  embryos.
The results suggest that precursor cells grown from human adult or embryonic
  stem cells might also restore sight in humans.
Embryonic stem cells differ from other cells in the body.
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