See Also: opal(medicine)
opal(dictionary)
opal(encyclopedia)
opal(dictionary)
opal codon(medicine)
opal mutation(medicine)
opal suppressor(medicine)

opal (oh)



[Date: 1500-1600; Language: Latin; Origin: opalus, from Sanskrit upala 'stone, jewel']
a type of white stone with changing colours in it, often used in jewellery