The viscosity of a crude oil affects our ability to pump it out of the ground; the viscosity and volatility of a fuel affect how easy it is to atomize in the fuel injector; the viscosity of a lubricant affects its ability to protect an engine.
ramus (plural rami) ( 1 biology) A branching, as of nerves or blood vessels. ( 2 ornithology) The stem of a barb of a feather, from which the barbules extend. ( 3 anatomy) A bony projection, particularly of the jaw, but also in the groin area, both subject to the maturing process of symphysis.
The Logic of ramus in 1555 is cited as the first departure from this rule. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 2 Various The French rame, an oar, is remus, but that modified by an unconscious recollection of ramus.