O star

[ oh stahr ]

noun

1. a very hot, massive, blue star of spectral type O, having a surface temperature between 30,000 and 50,000 K and an absorption spectrum with few lines, though the Balmer series of hydrogen lines is present and lines of ionized helium are detectable.

Example Sentences

"The arguments of all the characters in this film are so valid, so well thought-out, and that's what creates such a unique tension," says Nyong'o, star of 12 Years a Slave.

From BBC

That’s because it takes about 3 to 4 million years to form a Wolf-Rayet star, but an O star can’t be older than a million years.

From Forbes

With starry eyes she unfolded it and read: “O Morning Star that smilest in the blue, O star, my morning dream hath proven true, Smile sweetly, thou! my love hath smiled on me.”

From Project Gutenberg

Then came "O Star of Eve"; and last of all, "I'll Sing Thee Songs of Araby."

From Project Gutenberg

Gone is the race Lemurian; I weep, O Star, to sing their fate!

From Project Gutenberg