nickelback
/ˈnɪkəlbæk/
Word Rarity
Rare
Frequency: Zipf frequency 2.63 in modern English
24
Scrabble Score
10
Letters
3
Syllables
8
Unique Chars
Meaning
noun
A fifth defensive back (in addition to two cornerbacks and two safeties) who is deployed for additional pass coverage.
noun
Alternative form of Nickelback.
noun
A peptide with a nitrogen backbone containing two nickel atoms and having 13 amino acids.
Etymology
Blend of nickel + cornerback. Modelled on quarterback: both the quarter (“25 cents”) and the nickel (“5 cents”) are American coins, though quarterback was not named for the coin. Coined due to the nickelback's role as the fifth defensive back on the field, thus the connection to the 5-cent nickel.