单词	Blastoidea
释义	Blastoidea plural noun Blas·​toi·​dea blaˈstȯidēə : a class, formerly considered a division of Crinoidea, of extinct Paleozoic short-stemmed or stemless pelmatozoan echinoderms shaped somewhat like a flower bud and having five ambulacral areas with slender appendages along their margins and flattened tubes along their internal surface blastoidean (ˈ)⸗¦⸗dēən adjective or noun Word History Etymology New Latin, from blast- + -oidea
随便看	bathyalest bathyaller bathyallest bathybial bathybic bathybius bathybiuses bathychrome bathyclinograph bathyergi Bathyergidae bathyergidaes bathyerguses bathyergusses bathygram bathyl bathylimnetic bathylimnia bathylimnion bathylite bathylites bathylith bathyliths Bathymasteridae bathymeter

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