Test Your Vocabulary

Take Our 10-Question Quiz

Name That Thing

Take our visual vocab quiz

Test Your Knowledge »

True or False?

A quick quiz about stuff worth knowing

Take It Now »

Join Us on FB & Twitter

Get the Word of the Day and More

Facebook | Twitter

radial cleavage


radial cleavage

noun

Definition of RADIAL CLEAVAGE

: holoblastic cleavage that is typical of deuterostomes and that is characterized by arrangement of the blastomeres of each upper tier directly over those of the next lower tier resulting in radial symmetry around the pole to pole axis of the embryo — compare spiral cleavage

First Known Use of RADIAL CLEAVAGE

1973

Browse

Next Word in the Dictionary: radial drill
Previous Word in the Dictionary: radial canal
All Words Near: radial cleavage

Seen & Heard

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