Wiktionary
ingressive
a. 1 going or directed inward, entering 2 open to entry or examination 3 (context phonetics of a speech sound English) Uttered by drawing air inward through the mouth or nose. 4 (context geology English) descriptive of a source or channel through which water enters or once entered an area. n. (context phonetics English) A speech sound in which the air stream is created by drawing air in through the mouth or nose.