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embryonic

American  
[em-bree-on-ik] / ˌɛm briˈɒn ɪk /
Also embryonal

adjective

  1. pertaining to or in the state of an embryo.

  2. rudimentary; undeveloped.

    Synonyms:
    unfinished, immature, underdeveloped

embryonic British  
/ ˌɛmbrɪˈɒnɪk, ˈɛmbrɪənəl /

adjective

  1. of or relating to an embryo

  2. in an early stage; rudimentary; undeveloped

"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

Other Word Forms

Etymology

Origin of embryonic

1840–50; embryon- ( see embryo) + -ic

Explanation

If something is described as embryonic, it's just starting to develop or come together. An "embryo" is a person or animal that is still growing in the womb or egg, and embryonic means "like an embryo." The idea for Facebook was still embryonic when its creators agreed to be partners. At that early stage, none of them could have imagined what an enormous company it would become. Scientists working on embryonic stem-cell research are working on stem cells from embryos, which have special properties not found in any other cells. Our relationship was still embryonic when you suggested we move in together, but for me, the first date is way too early to think about such things.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Embryonic testing can reveal secrets like genetic disorders.

From Slate • May 7, 2024

What makes it even more difficult: Embryonic development does not always follow the expected timetable.

From Science Daily • Nov. 23, 2023

Embryonic tissue was too delicate to withstand pressure from the clasp of a microtome.

From Scientific American • Apr. 9, 2022

The video also shows an email referencing the HEK293T cell line — or Human Embryonic Kidney 293 — which was first established in the early 1970s using cells from a kidney of a fetus.

From Seattle Times • Oct. 8, 2021

Embryonic evolution 547:9 The late Louis Agassiz, by his microscopic examination         of a vulture's ovum, strengthens the thinker's conclusions         as to the scientific theory of creation.

From Science and Health, with Key to the Scriptures by Eddy, Mary Baker