Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
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noun
A fifth defensive back (in addition to two cornerbacks and two safeties) who is deployed for additional pass coverage.
Definition source: English Wiktionary via Wiktextract
Topics: American-football, ball-games, football, games, hobbies, lifestyle, sports
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
Alternative form of Nickelback.
Definition source: English Wiktionary via Wiktextract
Usage: alt-of, alternative
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
A peptide with a nitrogen backbone containing two nickel atoms and having 13 amino acids.
Definition source: English Wiktionary via Wiktextract
Topics: biochemistry, biology, chemistry, microbiology, natural-sciences, physical-sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
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.
From nickel + back.
From nickel + back. From having nickel atoms on the backbone structure.
