The story
From L + xylulokinase.
Etymology from Wiktionary, CC BY-SA 4.0.
L-xylulokinase
Today it means: An enzyme that catalyzes ATP (adenosine triphosphate) and L-xylulose, producing ADP (adenosine diphosphate) and L-xylulose 5-phosphate. It's a phosphotransferase used in metabolism. Full definition →