Nearby & related entries: 1  petrol tank. 2  petrol-electric. 3  petrolatum. 4  petrolatum gauze. 5  petroleomics. 6  petroleum coke. 7  petroleum ether. 8  petroleum future. 9  petroleum geologist. 10  petroleum geology.
a combining form meaning âeating, devouring,â used in the formation of compound words: phagocyte. Compare -phage, -phagous, -phagy. Origin of phago-.
The gas is a mixture of half nitrous oxide (N 2 O or laughing gas) and half oxygen (O 2). The ability to combine N 2 O (nitrous oxide is the common name; dinitrogen monoxide, systematic name) and oxygen at high pressure while remaining in the gaseous form is caused by the Poynting effect (after John Henry Poynting, an English physicist).