alveolus

/รฆlหˆviษ™lษ™s/

IPA: /AE0 L V IY1 AH0 L AH0 S/

noun
  1. 1

    A small cavity or pit.

  2. 2

    An anatomical structure that has the form of a hollow cavity, as:

Source: https://en.wiktionary.org/wiki/alveolus