Definition of dimidiating:
(adj) :
Divided into two (equal) halves.
(adj) :
Consisting of only one half of what the normal condition requires; having the appearance of lacking one half.
(adj) :
Having the organs of one side, or half, different in function from the corresponding organs on the other side.
(v) :
(transitive) To divide into two.
(v) :
(transitive, heraldry) To represent one half of, or undergo dimidiation with.