noun
Primarily a medical/biological term for the motility of sperm or other cells. The 'moment' gloss is rare and likely refers to a physical or statistical moment; it is not a common standalone meaning.
精子の運動率が低いと、不妊の原因になることがあります。
Low sperm motility can be a cause of infertility.
この検査では、運動率を数値で評価します。
This test evaluates motility as a numerical value.