1. 
   Spatangoidea
   Spat`an·goi'de·a noun plural [ New Latin See Spatangus , and -oid .] (Zoology) An order of irregular sea urchins, usually having a more or less heart-shaped shell with four or five petal-like ambulacra above. The mouth is ede...
   Found op http://www.encyclo.co.uk/webster/S/155
   
   
2. 
   spatangoidea
   <zoology> An order of irregular sea urchins, usually having a more or less heart-shaped shell with four or five petal-like ambulacra above. The mouth is edentulous and situated anteriorly, on the under side. ... Origin: NL. See Spatangus, and -oid. ... Source: Websters Dictionary ... (01 Mar 1...
   Found op http://www.mondofacto.com/facts/dictionary?spatangoidea
   
   
3. 
   Spatangoidea
   • (n. pl.) An order of irregular sea urchins, usually having a more or less heart-shaped shell with four or five petal-like ambulacra above. The mouth is edentulous and situated anteriorly, on the under side.
   Found op http://thinkexist.com/dictionary/meaning/spatangoidea/
   
   

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