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单词 abactinal
释义

Definition of abactinal in English:

abactinal

adjective əˈbaktɪnəlaˈbaktɪnəl
Zoology
  • Designating the part or surface of an echinoderm or other radiate animal that is furthest from the mouth (as the upper side of a starfish); relating to this part.

Origin

Mid 19th century; earliest use found in Louis Agassiz (1807–1873), zoologist and geologist. From ab- + actinal.

 
 

Definition of abactinal in US English:

abactinal

adjective
Zoology
  • Designating the part or surface of an echinoderm or other radiate animal that is furthest from the mouth (as the upper side of a starfish); relating to this part.

Origin

Mid 19th century; earliest use found in Louis Agassiz (1807–1873), zoologist and geologist. From ab- + actinal.

 
 
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更新时间:2025/1/26 17:44:33