| 释义 |
Exocycloida
Thesaurus| Noun | 1.Exocycloida - flat sea urchinsorder Exocycloidaanimal order - the order of animalsclass Echinoidea, Echinoidea - sea urchins and sand dollarssand dollar - flattened disklike sea urchins that live on sandy bottoms |
Exocycloida
Synonyms for Exocycloidanoun flat sea urchinsSynonymsRelated Words- animal order
- class Echinoidea
- Echinoidea
- sand dollar
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