- birthstone
- birthstone [bʉrth′stōn΄]n.a precious or semiprecious gem symbolizing the month of a person's birth: the usual list (with modern variants), beginning with that of January, is as follows: garnet, amethyst, bloodstone (aquamarine), diamond, emerald, pearl (alexandrite), ruby, sardonyx (peridot), sapphire, opal (tourmaline), topaz (citrine), and turquoise (zircon)
English World dictionary. V. Neufeldt. 2014.