Any material with similar physical properties, such as an alloy.
(astronomy) An element which was not directly created after the Big Bang but instead formed through nuclear reactions; any element other than hydrogen and helium.
Molten glass that is to be blown or moulded to form objects.
(music) 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.
(archaic) The substance that constitutes something or someone; matter; hence, character or temper; mettle.
