Definition of "cephalopod" []

• Any of various marine mollusks of the class Cephalopoda, such as the octopus, squid, cuttlefish, or nautilus, having a large head, large eyes, prehensile tentacles, and, in most species, an ink sac containing a dark fluid used for protection or defense. (noun)
• Of, relating to, or belonging to the class Cephalopoda. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The giant squid is an "eat the crew, ask questions later" kind of cephalopod"
• "I was also somewhat at a loss as to what kind of cephalopod-related picture I could post in honor of PZ's 50th not a lot of squid in northeastern California!"
• "Sorry, I’m pretty sure that’s not Darwin, but some kind of cephalopod space alien."