What context can I use each word in?
Learn when and how to use these words with these examples!
ostium
Example
The ostium of the fallopian tube is where fertilization occurs. [ostium: noun]
Example
The left atrioventricular ostium is the opening between the left atrium and ventricle. [ostium: noun]
Example
The ostium of the eustachian tube helps regulate air pressure in the middle ear. [ostium: noun]
orifice
Example
The orifice of the mouth is where food enters the digestive system. [orifice: noun]
Example
The orifice of the urethra is where urine exits the body. [orifice: noun]
Example
The orifice of the nozzle controls the flow of water from the hose. [orifice: noun]
Good things to know
Which word is more common?
Orifice is more commonly used than ostium in everyday language due to its versatility and broader usage.
What’s the difference in the tone of formality between ostium and orifice?
Ostium is more formal and technical than orifice, which can be used in both formal and informal contexts.
