1. Unhomogenized milk naturally separates into a small layer of fatty liquid (called cream) and a layer of nearly fat-free liquid (called skim milk). Skimming off the top layer produces the dairy product cream. Modern techniques of cream production involve separating whole milk through the use of centrifuges, greatly speeding up the process.
opah. n. 1. (Animals) a large soft-finned deep-sea teleost fish, Lampris regius (or luna), of the Atlantic and Pacific Oceans and the Mediterranean Sea, having a deep, brilliantly coloured body: family Lampridae. Also called: moonfish or kingfish.
According to an article in the journal Science, the opah is a rarity: A warm-blooded fish that can swim fast by flapping its fins like water wings as it speeds through the water. The movement speeds the opah's metabolism and heats its blood, leading to better reaction times, according to researchers.