different between mesiodistal vs mesioproximal

English

mesio- +? distal

mesiodistal (not comparable)

(dentistry) Of or relating to the mesial and distal surfaces of a tooth
(linguistics) In the description of languages with a four-way distinction for demonstratives, refers to a demonstrative which indicates something near neither the speaker nor the addressee, but not too far off from either one.

mesio- +? proximal

mesioproximal (not comparable)

(linguistics) In the description of languages with a four-way distinction for demonstratives, refers to a demonstrative which indicates something near the addressee.

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