botany (a scientific study of plants)

Kyūjitai form of 植物学: botany

not always, not necessarily / not completely / not exactly, not strictly speaking, not technically

immigrant plant, introduced species of plant

stiffen / for a person to freeze, for one's expression to freeze

ferromagnetism

strong shaking

Chrysophyta

(medicine) Synonym of 遷延性意識障害 (sen'ensei ishiki shōgai, “persistent vegetative state”)

patient; persevering; of great fortitude