dilater
Noun: A dilater is a surgical instrument specifically designed to enlarge, widen, or stretch an opening or an organ within the body. It is a tool used in medical procedures to facilitate access or treatment.
The word "dilater" is a technical term used almost exclusively in medical and surgical contexts. It refers to the physical instrument itself. * The surgeon selected a suitable dilater for the procedure. * A dilater is often used to open a narrowed blood vessel.
- The term can be used in a more general, non-surgical sense to describe any device or agent that causes dilation, though this is less common. For example, in pharmacology, a substance that causes blood vessels to widen is typically called a "vasodilator," not a "dilater."
- Dilator: This is a more common and preferred spelling for the same instrument. "Dilator" and "dilater" are variant spellings of the same word.
- Dilate (verb): To make or become wider, larger, or more open.
- The pupil of the eye dilates in low light.
- Dilation (noun): The process of dilating or the condition of being dilated.
- Cervical dilation is a key stage of childbirth.
- Expander
- Enlarger
- Speculum (a specific type of dilator used to hold open a body cavity for examination)
The core meaning of "dilater" is strictly tied to its function as an instrument for mechanical dilation. It should not be confused with: * A drug or chemical agent that causes dilation (e.g., a vasodilator). * A person or thing that causes expansion in a metaphorical sense (e.g., "He was a dilater of minds through his teachings"). This usage is extremely rare and not standard.
-
a surgical instrument that is used to dilate or distend an opening or an organ