noun
bottle for raising insects
A container, typically a bottle or jar, used for rearing insects such as beetles or crickets.
カブトムシの幼虫を飼育瓶に入れて育てる。
I put the beetle larva in a rearing bottle to raise it.
Compound of 飼育 (しいく, 'breeding, raising') and 瓶 (びん, 'bottle, jar').