spinel ruby noun

Ruby spinel, a variety of magnesian spinel with the colour of a true ruby

ruby /rooˈbi/

1. A precious stone, a pure transparent red corundum
2. Extended to other stones, such as varieties of spinel and garnet
3. The colour of a ruby, a deep crimson
4. (in pl) the lips (poetic)
5. Blood (boxing sl)
6. A deep-red wine or port
7. Ruby glass (see below)
8. A type smaller than nonpareil and larger than pearl (51/2 points; printing)

Red as a ruby

To redden

ruˈbied adjective

Red as a ruby

ruˈbin or ruˈbine /-bin/ noun (Spenser)

A ruby

rubinˈeous adjective

ruˈbious adjective

Ruby, red, ruddy

ruˈby-coloured adjective

ruby glass noun

Glass coloured a deep red by the addition of mineral oxides

ruby-redˈ adjective

Deep crimson

ruby silver noun

1. Proustite
2. Pyrargyrite

ruby spinel noun

A ruby-red spinel (also spinel-ruby)

ruˈby-tail noun

A gold-wasp, or cuckoo-fly

ruˈbythroat noun

A hummingbird with a ruby gorget

ruˈbythroated adjective

ruby wedding noun

A fortieth wedding anniversary