Isotope

7 lettersnounmoderate

Updated June 2026

Definition

One of two or more forms of the same element that have identical atomic numbers but differ in the number of neutrons in their nuclei.

“Carbon-14 is a radioactive isotope widely used in archaeological dating.”

Pronunciation

IPA

/ˈaɪ.sə.təʊp/

Syllables

i·so·tope

Word Game Tips

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Wordle

Starts with 'iso', four vowels, ends in '-ope', a well-known scientific term

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Scrabble

P (3 pts) is the key tile, the -OPE ending opens up useful board hooks

Words Related to Isotope

Words you can make from Isotope

Shorter words formed from the letters in “isotope”.

otiose epist estop petos piest piste poets poise posit septi sotie spite spoot stipe stipo stoep stoop stope toise topes topis topoi topos epit

Add a letter to make a longer word

8-letter words you can spell by adding one letter to “isotope”.

opposite

Explore Similar Words

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Dictionary References

Look up isotope in an authoritative dictionary for full definitions, pronunciation, and etymology.

Cambridge Dictionary Merriam-Webster

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