ingressive

adjective

1. of, relating to, or involving ingress.
2. Phonetics. (of a speech sound) produced with air being taken into the mouth, as some clicks (opposed to egressive).

adjective

1. of or concerning ingress
2. (of a speech sound) pronounced with an inhalation rather than exhalation of breath

noun

3. an ingressive speech sound, such as a Zulu click