noun
ink sac (of cephalopods)
Zoological term for the organ that produces and stores ink in squid, octopus, and related animals. Also referred to as 墨袋 (すみぶくろ).
See also: 墨袋
イカの墨汁嚢から取り出した墨は料理に使われる。
Ink extracted from the squid's ink sac is used in cooking.
If you damage the ink sac during dissection, the ink will splatter.