| 词汇 | protocone |
| 释义 | Definition of protocone in English:protoconenoun ˈprəʊtəkəʊn Zoology
OriginLate 19th century. From proto- + cone; so named because it was thought to represent the apex of the primitive conical reptilian tooth, though later research indicates that this is actually represented by the paracone. Compare protoconid. Definition of protocone in US English:protoconenounˈprəʊtəkəʊn Zoology
OriginLate 19th century. From proto- + cone; so named because it was thought to represent the apex of the primitive conical reptilian tooth, though later research indicates that this is actually represented by the paracone. Compare protoconid. |
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