Associations to the word «Echinoidea»
Wiktionary
ECHINOIDEA, proper noun. A taxonomic class within the superclass Cryptosyringida — the sea urchins and sand dollars.
Dictionary definition
ECHINOIDEA, noun. Sea urchins and sand dollars.
Wise words
Don't use words too big for the subject. Don't say
"infinitely" when you mean "very"; otherwise you'll have no
word left when you want to talk about something really
infinite.