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prophylactic

noun · adjective

Simple meaning

A medicine which preserves or defends against disease.

Pronunciation

Say it like this:

prahfihlaktik

Say the bold part a little louder.

US device voice
IPA pronunciation (US)

pɹɑfɪˈlæktɪk

This word is pronounced essentially the same in American and British English, so one transcription covers both.

IPA (International Phonetic Alphabet) is a standard way of writing speech sounds.

Word Review

Definition

Everyday modern meanings first, grouped by part of speech.

noun

  1. A medicine which preserves or defends against disease; a preventive.

  2. USspecifically

    A prophylactic condom.

  3. figuratively

    Any device or mechanism intended to prevent harmful consequences.

adjective

  1. Serving to prevent or protect against an undesired effect, especially disease or pregnancy

Word at a Glance

Difficulty
C2 · Proficient (estimated)
Frequency
Uncommon
Formality
Technical

Word Aura™

How this word commonly comes across.

Aura for this meaning

This meaning: A medicine which preserves or defends against disease; a preventive.

Used this way, prophylactic is a specialist word with a faintly unfavourable edge. This is a clinical use: it belongs to medical description, where it is factual rather than emotive.

Emotional tone
Slightly negative
Formality
Specialist/technical
Intensity
Moderate
How common
Specialized
Connotation
Critical or judgemental
Usage feel
Clinical and detached

Where it naturally appears

  • Medicine/healthcare
  • Science
  • Technical/specialist writing

Usage note

In general conversation this sense usually needs explaining — outside its field, people reach for a plainer word.

Word Aura describes common impressions, not a measurement. Tone changes with sentence, speaker, relationship and situation.

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Common Patterns and Combinations

How this word naturally appears with others.

Medicine / serving

prophylactic therapyprophylactic effect

Other combinations

prophylactic surgeryprophylactic treatmentprophylactic antibioticsprophylactic useprophylactic measureprophylactic administration

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Word Family

Related forms, grouped by how they connect.

Compound terms

Established multiword terms.

Related Words

Connected to the same idea, not synonyms.

More about this wordSynonyms, forms, origin

Synonyms

Sense: serving to prevent or protect against an undesired effect

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Dictionary data from Wiktionary via the Free Dictionary API. Simple meanings, combinations and word intelligence are built from verified reference data, no AI is used to load this page.