The Bureau International des Poids et Mesures (International Bureau for Weights and Measures, or BIPM) is one of the three organizations established to maintain the SI system under the terms of the
Metre Convention.
... human female, the urethra is about 1-1.5 inches (25-38 mm) long and opens in the vulva between the clitoris and the vaginal opening.
In the human male, the urethra is ...