noun
definition
(heading) Chemical elements or alloys, and the mines where their ores come from.
definition
A light tincture used in a coat of arms, specifically argent and or.
definition
Molten glass that is to be blown or moulded to form objects.
definition
A category of rock music encompassing a number of genres (including thrash metal, death metal, heavy metal, etc.) characterized by strong drum-beats and distorted guitars.
definition
The substance that constitutes something or someone; matter; hence, character or temper; mettle.
definition
The effective power or calibre of guns carried by a vessel of war.
definition
(in the plural) The rails of a railway.
definition
(travel) The actual airline operating a flight, rather than any of the codeshare operators.
example
We have American Airlines tickets, but it's on British Airways metal.