adj · noun · 9 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:/pɹɒfəˈlæktɪk/
Australia:Recorded audio is listed in the source snapshot.
rhymes with -æktɪk
CMU ARPABET:P R AA2 F IH0 L AE1 K T IH0 K
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
CMU ARPABET 2:P R OW2 F IH0 L AE1 K T IH0 K
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
adj
Meaning 1
Serving to prevent or protect against an undesired effect, especially disease or pregnancy.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
A medicine which preserves or defends against disease; a preventive.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
A medicine which preserves or defends against disease; a preventive.
A prophylactic condom.
Definition source: English Wiktionary via Wiktextract
Usage: US, specifically
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: condom, cum catcher, rubber
Antonyms: none provided
4
noun
Meaning 4
Any device or mechanism intended to prevent harmful consequences.
Definition source: English Wiktionary via Wiktextract
Usage: figuratively
Examples
The securities laws are a prophylactic against stock fraud.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
5
adjective satellite
Meaning 5
preventing or contributing to the prevention of disease
Definition source: Princeton WordNet 3.0
Examples
preventive medicine
vaccines are prophylactic
a prophylactic drug
Meaning relationships
Synonyms: preventive, preventative
Antonyms: none provided
6
adjective satellite
Meaning 6
warding off- Victor Schultze
Definition source: Princeton WordNet 3.0
Examples
the swastika...a very ancient prophylactic symbol occurring among all peoples
Meaning relationships
Synonyms: cautionary
Antonyms: none provided
7
adjective satellite
Meaning 7
capable of preventing conception or impregnation
Definition source: Princeton WordNet 3.0
Examples
contraceptive devices and medications
Meaning relationships
Synonyms: contraceptive, antifertility
Antonyms: none provided
8
noun
Meaning 8
contraceptive device consisting of a sheath of thin rubber or latex that is worn over the penis during intercourse
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.