| 单词 |
proal |
| 释义 |
proal, a. Physiol.|ˈprəʊəl| [f. Gr. πρό before + -al1.] Having a forward direction or motion: said of the lower jaw in mastication.
1888Cope in Amer. Nat. Jan. 7 note, The propalinal mastication is to be distinguished into the proal, from behind forwards,..and the palinal, from before backwards. |

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