agenesis

noun agen·e·sis \ (ˌ)ā-ˈje-nə-səs \

Definition of agenesis

: lack or failure of development (as of a body part)

Recent Examples of agenesis from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'agenesis.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of agenesis

2a- + genesis, on the model of French agénésie


Medical Dictionary

agenesis

noun agen·e·sis \ (ˈ)ā-ˈjen-ə-səs \

medical Definition of agenesis

plural ageneses play \-ˌsēz\
: lack or failure of development (as of a body part)

Learn More about agenesis


Seen and Heard

What made you want to look up agenesis? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

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

WORD OF THE DAY

peaceful, happy, or prosperous

Get Word of the Day daily email!

Test Your Vocabulary

Test Your Emoji Exceptionalism

  • test-your-emoji-exceptionalism-written-with-a-lot-of-emoji
  • What is this emoji intended to represent: 🤳
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

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!