pearlyPronunciation: /ˈpəːli/Definition of pearly adjective (pearlier, pearliest) resembling a pearl in lustre or colour:nice pearly teeth made of or adorned with pearls or mother-of-pearl. noun (plural pearlies) (pearlies) 1British pearly kings and queens: her mum and dad had been pearlies a pearly king’s or queen’s clothes or pearl buttons: Joe gleaming and sparkling in his pearlies 2 (also pearly whites) informal a person’s teeth. Derivatives pearliness noun pearly in other Oxford dictionaries Definition of pearly in the US English dictionary