\In`ter*jec"tion*al\, a.
1. Thrown in between other words or phrases; parenthetical;
   ejaculatory; as, an interjectional remark.

2. Pertaining to, or having the nature of, an interjection;
   consisting of natural and spontaneous exclamations.

         Certain of the natural accompaniments of
         interjectional speech, such as gestures, grimaces,
         and gesticulations, are restrained by civilization.
                                               --Earle.