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词汇 prechordate
释义

Definition of prechordate in English:

prechordate

noun priːˈkɔːdeɪt
Zoology
  • An animal considered to represent an evolutionary stage ancestral to the chordates.

adjective priːˈkɔːdeɪt
Zoology
  • That is an evolutionary ancestor of the chordates; occurring or originating prior to the evolution of the chordates.

Origin

1920s. From pre- + chordate.

Definition of prechordate in US English:

prechordate

nounpriːˈkɔːdeɪt
Zoology
  • An animal considered to represent an evolutionary stage ancestral to the chordates.

adjectivepriːˈkɔːdeɪt
Zoology
  • That is an evolutionary ancestor of the chordates; occurring or originating prior to the evolution of the chordates.

Origin

1920s. From pre- + chordate.

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