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.
Etymology: ME f. OF ambre f. Arab. ' anbar ambergris, amber