n. & adj.
n. 1 a a yellowish translucent fossilized resin deriving from extinct (esp. coniferous) trees and used in jewellery. b the honey-yellow colour of this. 2 a yellow traffic-light meaning caution, showing between red for 'stop' and green for 'go'.
adj. made of or coloured like amber.
[ ME f. OF ambre f. Arab. ' anbar ambergris, amber ]