(a) a small ring; (b) Med. and anat. the 'cartilage of the windpipe' [Norri]; (c) her. a cadency mark in the shape of a ring. …

Of persons, animals (specif., the fox, lapwing), etc.: given to the practice of deception; deceitful, full of guile; also, guilty of breach of trust, faithless, disloyal, perfidious, treacherous; fals……