brackett series
Word Rarity
Rare
Frequency: Zipf frequency 2.52 in modern English
22
Scrabble Score
14
Letters
3
Syllables
9
Unique Chars
Meaning
name
One of the hydrogen spectral series, lying in the far infrared band.
Etymology
Named after the American physicist Frederick Sumner Brackett, who first observed the spectral lines in 1922.