Cephalopoda
noun plural
Ceph·a·lop·o·da
ˌsef-ə-ˈläp-əd-ə 
: a class of mollusks including the squids, cuttlefishes, and octopuses that have a tubular siphon under the head, a group of muscular arms around the front of the head which are usually furnished with suckers, highly developed eyes, and usually a bag of inky fluid which can be ejected for defense or concealment
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“Cephalopoda.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/Cephalopoda. Accessed 29 Nov. 2024.
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