PRONUNCIATION / Science and learning

How to pronounce infinitesimal

Check infinitesimal pronunciation with CMUdict sound tokens and stress, then practise two original sentences and download a voiceover audition worksheet.

The dictionary sound sequence

CMUdict lists this North American English pronunciation for infinitesimal. Read each sequence from left to right. The numbers mark vowel stress: 1 primary, 2 secondary, 0 unstressed.

Dictionary variant 1

IH2 N F IH0 N IH0 T EH1 S IH0 M AH0 L

Syllable estimate: 6 vowel nuclei
Primary stress: 4th vowel position
Secondary stress: 1st vowel position

Check infinitesimal in Merriam-Webster and listen to available dictionary audio.

Syllable counts come from vowel tokens; CMUdict does not supply syllable boundaries here. Variant order follows the dictionary and does not rank correctness. This lexicon does not represent every accent or context.

Use infinitesimal in context

Infinitesimal describes something extremely small and has a more specific role in some mathematical discussions. Science narration should establish whether it is using the word informally or technically. A concrete scale, comparison, or definition prevents the listener from confusing a very small quantity with a claim that it is exactly zero.

The instrument detected an infinitesimal change in the signal.
The lesson explains what an infinitesimal means within the chosen mathematical framework.

Read the sound tokens

Each example word below is a cue for the named sound, rather than a respelling of infinitesimal. Unstressed vowels may sound reduced. These cues follow the CMU phoneme-set key (Appendix A).

IHsound in itvowel

Nsound in kneeconsonant

Fsound in feeconsonant

Tsound in teaconsonant

EHsound in Edvowel

Ssound in seaconsonant

Msound in meconsonant

AHsound in hutvowel

Lsound in leeconsonant

TAKE IT TO YOUR NEXT RECORDING

Make an audition worksheet

Select a dictionary variant for your checklist. The two original sentences retain their normal spelling; this worksheet helps you review a recording rather than forcing a speech engine to use phonemes.

Worksheet pronunciation variant

Your plain-text audition worksheet

How to pronounce infinitesimal

Word: infinitesimal
Dictionary variant: 1 of 1
CMUdict ARPABET: IH2 N F IH0 N IH0 T EH1 S IH0 M AH0 L
Vowel nuclei / estimated syllables: 6
Primary stress: 4th vowel position

ORIGINAL AUDITION SCRIPT
The instrument detected an infinitesimal change in the signal.
The lesson explains what an infinitesimal means within the chosen mathematical framework.

REVIEW CHECKLIST
[ ] Read both sentences naturally; keep the source wording.
[ ] Compare the intended pronunciation with the selected dictionary variant.
[ ] Listen for vowel sounds, consonants, and word stress in context.
[ ] Check with a speaker or another dictionary when accent or meaning matters.
[ ] Generate and listen to a short Murmur sample before exporting the full script.

Practice note: Audition infinitesimal beside the comparison or formal definition in your script. Listen for the full word remaining clear at the lesson's normal pace, and check any numbers separately so a smoothly spoken adjective does not conceal the actual scale being described.

CMUdict is a North American English lexicon, not a recording or a complete accent guide.
Variant order is dictionary order; it is not a ranking of correctness.
Source: https://github.com/cmusphinx/cmudict/blob/74790861f652b15e4ac49015a90074ad62a27690/cmudict.dict
Source commit: 74790861f652b15e4ac49015a90074ad62a27690
License: https://www.murmurtts.com/downloads/cmudict-license.txt
Reference: https://www.murmurtts.com/pronunciation/infinitesimal

Copying and downloading happen in your browser. No script upload or audio generation is needed.

Dictionary source

The phonemes on this page come from CMU Pronouncing Dictionary. The dictionary maintainers acknowledge that errors and omissions can remain; check another source or a speaker when the pronunciation matters.

CMUdict README · Included dictionary license

Source version and checksum

Commit: 74790861f652b15e4ac49015a90074ad62a27690

Dictionary SHA-256: 81917843c7f44ce2b094ac63873c2c7a4cf802040792c455ba3ca406891c3d22

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