a body louse (Pediculus humanus)

body / physique, constitution, frame / health

(of size or amount) small, little, tiny / (of age) young, little

(ecology) to be parasitic

(ecology) parasitism

an insect (arthropod of class Insecta)

a sucking louse, especially the head louse (Pediculus humanus capitis)

louse

(archaic) the world in which people live; the world, society

human, person, human being / personality, character / (Buddhism) literally meaning: "human society", referring to one of the six realms of reincarnation in Buddhist cosmology.