Noun
rate of speed (plural rates of speed)
Speed; rate of travel.
I started reading and talking and interviewing nutritionists and a thread was starting to form for me which is - a protein digests in a different rate of speed than a carbohydrate. Suzanne Somers
I consider any gun that can chamber a round and send a projectile down its barrel at a high rate of speed into my body - causing me injury or death - to be an assault weapon. Henry Rollins