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  1. ostium love

Definitions

American Heritage® Dictionary of the English Language, Fourth Edition

  1. n. A small opening or orifice, as in a body organ or passage.
  2. n. Any of the small openings or pores in a sponge.

Century Dictionary and Cyclopedia

  1. n. An opening or entrance; a mouth; an os. Specifically — In human anatomy, either opening, uterine or abdominal, of a Fallopian tube or oviduct. These are called respectively ostium uterinum and ostium abdominale.
  2. n. In zoology: In sponges, the opening of an incurrent canal.

Wiktionary

  1. n. A small opening or orifice, as in a body organ or passage.
  2. n. Any of the small openings or pores in a sponge.

GNU Webster's 1913

  1. n. (Anat.) An opening; a passage.

Etymologies

  1. Latin ōstium, door, opening, from ōs, mouth; see ōs- in Indo-European roots. (American Heritage® Dictionary of the English Language, Fourth Edition)

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‘ostium’ has been looked up 1504 times, added to 3 lists, and has a Scrabble score of 8.