Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

amniocentesis

play
noun am·nio·cen·te·sis \ˌam-nē-ō-(ˌ)sen-ˈtē-səs\

Simple Definition of amniocentesis

  • medical : a test that is done to check for possible health problems in a baby that is not yet born

Full Definition of amniocentesis

plural am·nio·cen·te·sesplay \-ˌsēz\

  1. :  the surgical insertion of a hollow needle through the abdominal wall and into the uterus to obtain amniotic fluid especially for the determination of fetal sex or chromosomal abnormality

Origin of amniocentesis

New Latin, from amnion + centesis puncture, from Greek kentesis, from kentein to prick — more at center


First Known Use: 1957


Medical Dictionary

amniocentesis

play
noun am·nio·cen·te·sis \ˌam-nē-ō-(ˌ)sen-ˈtē-səs\

Medical Definition of amniocentesis

plural am·nio·cen·te·ses \-ˌsēz\play

  1. :  the surgical insertion of a hollow needle through the abdominal wall and into the uterus of a pregnant female to obtain amniotic fluid especially to examine the fetal chromosomes for an abnormality and for the determination of sex



Illustration of amniocentesis


Learn More about amniocentesis


Seen and Heard

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

WORD OF THE DAY

February 8, 2016

to clear from accusation or blame

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

pince-nez duvet spindrift kittly-benders
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ