of, pertaining to, noting, or of the nature of a parenthesis: several unnecessary parenthetic remarks.
2.
characterized by the use of parentheses.
Also, par⋅en⋅thet⋅i⋅cal.
Origin: 1770–80; back formation from parenthetical < Gk parénthet(os) interpolated (verbid of parentithénai, equiv. to par-par-+ en-en-2+ the-, var. s. of tithénai to put + -tos v. adj. suffix) + -ic+ -al1
[par-uh
n-thet-ik] 