a hard malleable ductile silvery metallic element that is resistant to corrosion; used in alloys; occurs in pentlandite and smaltite and garnierite and millerite
serving as or forming a base
installation from which a military force initiates operations
a place that the runner must touch before scoring
lowest support of a structure
a support or foundation
a lower limit
the fundamental assumptions from which something is begun or developed or calculated or explained