Sec. 117.3. (a) "Sibling", for purposes of IC 31-19, IC 31-28-5, and IC 31-34 (except for IC 31-34-3-4.5), means a brother or sister by blood, half-blood, or adoption.
(b) "Sibling" for purposes of IC 31-34-3-4.5, means:
(1) a brother or sister by blood, half-blood, or adoption; and
(2) any other individual who would be considered a sibling if parental rights had not been terminated.