Blood based on hemocyanin rather than hemoglobin. Hemocyanin is based on copper rather than iron, and as a result the blood is blue rather than red. Hemocyanin works more efficiently at cold temperatures than warm temperatures, unlike hemoglobin.
The octopus is a cool blooded creature, unlike lizards which are generally cold blooded, with exceptions such as the tegu, which is warm blooded during mating season.
by Ravenious December 13, 2020
Used sarcastically when a societal “norm” should not be considered normal. Usually a disturbing reality that people subconsciously shrug off as normal even though it is far from it.
by Alienchex April 24, 2022
Dude check this out!" "Cool branches.(:
by doublerainbow0816 July 28, 2010
the calm way certain Soldiers, Airmen, Marines, or Sailors act under direct or indirect fire, combat conditions. More over the way they speak clearly on the radio calmly under fire.
TOC Roach: "wow I could really understand PVT Snuffy when he called up his 9-line, that guy is combat cool!"
by soldier that kicks ass May 11, 2011
(adj) Its basically a hip version of cash money. It means really cool. You can also use it as 'that's not very Joe Cool of you'.
by ratatata-touie April 23, 2020
by HenryJoeBenry January 29, 2019
This phrase was first used during the WW1 and WW2 era when which an Anzac was shot at, but the Anzac walked away unscathed.
by Aussie cobber September 17, 2015