protomorphic

形容词 adj.

英文释义

形容词 adj.
  1. Having the most primitive character; in the earliest form of stage. not-comparable
    — 1864-1898, Herbert Spencer, Principles of Biology That is to say , the contact of this deep - seated tissue with outer agencies, produces in it some approach towards that composition which we find universally characterizes outer - tissue - a protomorphic layer which differentiates in opposite directions.

词源

From proto- + -morphic.
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