septum noun [C]. âº a âthin âpart âdividing âtissues or âspaces in an âorgan such as the ânose or âheart: the ânasal septum. (Definition of septum from the Cambridge Advanced Learnerâs Dictionary & Thesaurus Â© Cambridge University Press). Browse. 1  septic.
Unfortunately, the giant squid Architeuthis has not been studied enough to make a comprehensive diet. From the few that have been dissected though, it was discovered that they would eat sperm whales that dive deep underwater.
The body of the colossal squid. A colossal squid has three main body parts: the mantle and fin, the head, and a circle of arms and tentacles. The main body of the squid is called the mantle, which fits like a sheath over the internal organs. This colossal squid's mantle is about 2.5 metres long and about 982 millimetres wide, almost the same diameter as a truck tyre â which would make pretty big squid rings! The mantle is made up of muscle and skin.