prothanic

adjective
pro·​than·​ic | \ (ˈ)prō¦thanik \

Definition of prothanic

 (Entry 1 of 2)

: subject to early death used of an embryo that fails to complete development due to severe anomalies

prothanic

noun
\ " \
plural -s

Definition of prothanic (Entry 2 of 2)

: a prothanic embryo

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

History and Etymology for prothanic

Adjective

pro- entry 1 + than- (from thanat-) + -ic

Keep scrolling for more

Learn More About prothanic

Dictionary Entries Near prothanic

prothallus

prothanic

protheca

See More Nearby Entries 

Statistics for prothanic

Cite this Entry

“Prothanic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/prothanic. Accessed 21 Sep. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

WORD OF THE DAY

Test Your Vocabulary

Dog Words Quiz

  • shiba puppy more or less demanding cuddles
  • Which of the following animals has a dog in its etymology?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Typeshift

Anagram puzzles meet word search.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!