hobby; indulgence; habit; addiction

feeding on the blood of living animals

to love wine as one's life; extremely fond of the bottle

lust; carnal desire; excessive appetite

to have strange and eccentric addictions or tastes (idiom)

eosinophil granulocyte (type of white blood cell)

eosinophil (a type of white blood cell)

an organism—a type of extremophile—that thrives at relatively high temperatures, between 41 and 122 °C (106 and 252 °F)

A medical condition characterized by excessive sleepiness or abnormally long periods of sleep.

basophil granulocyte (type of white blood cell)

basophil granulocytes (the rarest type of white blood cell)

A genus of Gram-negative, pathogenic bacteria that require blood-derived factors for growth.

Lactobacillus acidophilus