Bible Dictionaries
Astrula

Webster's Dictionary

Search for…

Enter query below:

or

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Prev Entry
Astructive

Next Entry
Astrulae

Resource Toolbox

Print Article

Additional Links

Dictionaries
Webster Dictionary
• Astrulae
• Astrula

(1):

(n.) An embryonic form having its origin in the invagination or pushing in of the wall of the planula or blastula (the blastosphere) on one side, thus giving rise to a double-walled sac, with one opening or mouth (the blastopore) which leads into the cavity (the archenteron) lined by the inner wall (the hypoblast). See Illust. under Invagination. In a more general sense, an ideal stage in embryonic development. See Gastraea.

(2):

(a.) Of or pertaining to a gastrula.