Lectionary Calendar
Monday, April 7th, 2025
the Fifth Week of Lent
There are 13 days til Easter!
Attention!
Tired of seeing ads while studying? Now you can enjoy an "Ads Free" version of the site for as little as 10¢ a day and support a great cause!
Click here to learn more!

Bible Dictionaries
Echinoidea

Webster's Dictionary

Search for…
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
Echinoid
Next Entry
Echinozoa
Resource Toolbox

(n. pl.) The class Echinodermata which includes the sea urchins. They have a calcareous, usually more or less spheroidal or disk-shaped, composed of many united plates, and covered with movable spines. See Spatangoid, Clypeastroid.

Bibliography Information
Webster, Noah. Entry for 'Echinoidea'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​e/echinoidea.html. 1828.
 
adsfree-icon
Ads FreeProfile