- A unit of measurement that expresses the activity of a catalyst in moles per second, such as the amount of an enzyme needed to transform one mole of substrate per second.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Examples from the Web for katal
Katal'halee and every soldier within range was also regarding him with interest.
He glanced across and saw that her eyes were sweeping past Katal'halee to the small cabin.
Standing above them, proud and erect in the face of death, stood the Princess Katal'halee and Mike felt a touch of admiration.
Sure, but I still can't figure how you convinced this Katal babe they're responsible for the uprising.
Katal'halee's eyes turned on the pair with a venom that sent every drop of blood from their faces.