AskDefine | Define ostium

User Contributed Dictionary

English

Noun

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

Latin

Noun

ostium

Extensive Definition

An ostium is a small opening or orifice, as in a body organ or passage.
It can mean the following
  • Any of the small openings or pores in a sponge for incoming water.

Anatomy

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