To pronounce "cosmasteroside", say COSM-ast-er-os-id-e — 6 syllables. Tap play below to hear it in four English accents, or practice it syllable by syllable.
cosmasteroside
Tap to hear · American accent
Accent
If an accent sounds the same, your device is missing that voice — it falls back to the closest one.
Speed
Syllable by syllable — tap each one
Record yourself saying cosmasteroside, then compare with the target. Your audio stays on this device — nothing is uploaded.
6
Syllables
14
Letters
COSM-ast-er-os-id-e
Say it like
"cosmasteroside" has 6 syllables: cosm-ast-er-os-id-e.
"Cosmasteroside" has 6 syllables: cosm · ast · er · os · id · e.
Want the definition, translations into 8 languages, and read-aloud for full sentences?
Open “cosmasteroside” in the full dictionary →