Definition of medials:
(adj) :
Situated in or near the middle; not at either end.
(adj) :
(anatomy, zootomy) Pertaining to the inside; closer to the median plane of the body or the midline of an organ.
(adj) :
(anatomy) Pertaining to the middle layer of a blood vessel, to its tunica media.
(adj) :
(phonetics, linguistics) (of a speech sound, or a character or sequence thereof) In the middle of a word.
(adj) :
(phonetics) (of a consonant) Central: produced when air flows across the center of the mouth over the tongue.
(adj) :
(mathematics) Of or pertaining to a mean or average.