Given a scientific question, generate a correct answer to it.

[Q]: What is the name of the "point" that refers to the temperature at which water vapor condenses?
[A]: dew point

[Q]: The short length of what in women is the best explanation for the greater incidence of uti in women?
[A]: urethra

[Q]: What is the term for a galaxy that is a rotating disk of stars and dust?
[A]:
spiral galaxy