Kyūjitai form of 昆虫学: entomology

insect

interest

A swarm of or an organism that swarms (e.g. bugs), an organism that forms in large groups (e.g. kombu) / elder brother / descendants, great-great-great-great grandchild

Kyūjitai form of 寄生虫学: parasitology

to hold, to carry something / to have, to possess / to hold up, to maintain

holding, possession / wear, durability

continuative of 持つ

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend