• WordNet 3.6
    • adj mesial being in or directed toward the midline or mesial plane of the body
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Webster's Revised Unabridged Dictionary
    • a Mesial (Anat) Middle; median; in, or in the region of, the mesial plane; internal; -- opposed to lateral.
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Century Dictionary and Cyclopedia
    • mesial Pertaining to the middle; being in the middle; in zoology, pertaining to or on the middle line or plane of the body; median. Also mesian
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Chambers's Twentieth Century Dictionary
    • adj Mesial mē′zi-al pertaining to the middle: median—also Mes′al, Mes′ian
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Webster's Revised Unabridged Dictionary
Gr. me`sos middle
Chambers's Twentieth Century Dictionary
Gr. mesos, middle.


In literature:

His pale Galilean eyes were upon her mesial groove.
"Ulysses" by James Joyce
Sprains of the mesial tarsal ligaments cause lameness somewhat similar to that of spavin.
"Lameness of the Horse" by John Victor Lacroix
Pallas describes the black of the tail as passing upwards in a mesial line.
"Natural History of the Mammalia of India and Ceylon" by Robert A. Sterndale
Mesially: at or to the middle.
"Explanation of Terms Used in Entomology" by John. B. Smith
When highly magnified, a mesial groove might be detected running along each of the hair-like lines.
"The Testimony of the Rocks" by Hugh Miller
In most cases, however, both clefts are complete, and the mesial portion of the lip is entirely separated from the lateral portions.
"Manual of Surgery Volume Second: Extremities--Head--Neck. Sixth Edition." by Alexander Miles
The toxicognaths are relatively weaker than in the orders hitherto considered, and have their basal segments less firmly fused mesially.
"Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6" by Various

In news:

A layer of "substructure" composite was laminated from the mesial of tooth No.
Non-Surgical Uprighting of Exposed, Mesially Impacted Lower Molars.
Mesial temporal sclerosis (MTS) is the most common epileptogenic lesion in human epilepsy.