acen·​trous | \ (ˈ)ā¦sen‧trəs\

Definition of acentrous

of some primitive fishes
: having the notochord persistent through life and lacking vertebral centra

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First Known Use of acentrous

1887, in the meaning defined above

History and Etymology for acentrous

a- entry 2 + centr- + -ous

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The first known use of acentrous was in 1887

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