精せい子し運うん動どう率りつ

Meanings

1

sperm motility (ratio)

Medical/biological term for the proportion of motile sperm in a sample.

ratio, rate, proportion

精せい子し
精子 is 'sperm' (the cell itself); 精子運動率 is the motility rate of sperm.
運うん動どう率りつ
運動率 means 'motility rate' or 'activity rate' and can be used in other biological contexts.

Compound of 精子 (sperm) + 運動 (movement/motility) + 率 (rate/ratio).