noun · 2 senses · updated from the 2026-07-25 local source snapshot
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
Pronunciation
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Received-Pronunciation:/nʌɪˈfɛd.ɪ.piːn/
General-American:/naɪˈfɛd.ɪˌpin/
General-American:/nɪˈfɛd.ɪˌpin/
CMU ARPABET:N AY2 F EH1 D AH0 P IY0 N
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
CMU ARPABET 2:N AH0 F EH1 D AH0 P IY0 N
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
A synthetic compound which acts as a calcium antagonist and is used as a coronary vasodilator in the treatment of cardiac and circulatory disorders.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: medicine, pharmacology, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
calcium blocker (trade name Procardia); appears to increase the risk of recurrent heart attacks
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.