orifice meaning

• Noun: orifice  orufis
  1. An aperture or hole that opens into a bodily cavity
     "the orifice into the aorta from the lower left chamber of the heart"
     - opening, porta

  Derived forms: orifices

  Type of: passage, passageway

  Encyclopedia: Orifice

• 
  [Electronics]
  An opening or window, such as that in a loudspeaker enclosure or waveguide, through which energy is transmitted.
  
• 
  [Medicine]
  n : an opening through which something may pass — or·i·fi·cial adj
  

• airflow orifice:    [Engineering]An op ...
• aortic orifice:    Noun: aortic orifi ...
• cardiac orifice:    [Medicine]n : CARD ...

Examples

1. the tumor may prolapse through the orifice.
2. the valve shown has a pilot and a bleed orifice.
3. the concentric orifice is most frequently used type.
4. the density p is that of the fluid escaping from the orifice.
5. the beltless machine, sometimes called a "fixed" orifice pasting machine.