luteinizing hormone
Concise Oxford English Dictionary © 2008 Oxford University Press:
luteinizing hormone /ˈluːtənʌɪzɪŋ/ (or luteinising hormone /ˈluːtənʌɪzɪŋ/)
▶noun Biochemistry a pituitary glycoprotein hormone that stimulates ovulation in females and the synthesis of androgen in males.
'luteinizing hormone' also found in these Oxford entries:

