from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An ink-containing organ located near the rectum in most cephalopods, including the octopus, squid, and cuttlefish.
from the GNU version of the Collaborative International Dictionary of English
- n. an organ, found in most cephalopods, containing an inky fluid which can be ejected from a duct opening at the base of the siphon. The fluid serves to cloud the water, and enable these animals to escape from their enemies. See Illust. of Dibranchiata.
Sorry, no etymologies found.