Speakur

Word Pronunciation & Dictionary

isotope

/ˈaɪ.sə.toʊp/

Word Rarity Rare

Frequency: 3.15 in modern English

Syllables
iso-tope
IPA
/ˈaɪ.sə.toʊp/
9
Scrabble Score
7
Letters
3
Syllables
6
Unique Chars

Meaning

noun

Any of two or more forms of an element where the atoms have the same number of protons, but a different number of neutrons within their nuclei. Thus, isotopes have the same atomic number but a different mass number.

verb

To define or demonstrate an isotopy of (one map with another).

Transitive verb

Etymology

From iso- (“equal”) + -tope (“place”), because the different isotopes of an element always occupy the same place in the periodic table. The term was coined by Scottish doctor Margaret Todd in 1909 and first used publicly on February 27, 1913 by English chemist Frederick Soddy.

Word Breakdown

Regional Pronunciation

  • American English: /ˈaɪ.sə.toʊp/
  • British English: /ˈaɪ.sə.təʊp/

Usage

Inflected Forms

isotopes (plural) isotopes (present, singular) isotoping (participle, present) isotoped (participle, past) isotoped (past)

Derived Forms

deisotope isoscape isotopics isotopism isotopometry monoisotope nonisotope radioisotope deisotoping

Phrases

clumped isotope daughter isotope isotope analysis isotope dilution isotope effect isotope exchange isotope geochemistry isotope hydrology

Frequently Paired Words

isobar isotone homotope

Questions

How do you pronounce isotope?
The recorded pronunciation is /ˈaɪ.sə.toʊp/.
What does isotope mean?
Any of two or more forms of an element where the atoms have the same number of protons, but a different number of neutrons within their nuclei. Thus, isotopes have the same atomic number but a different mass number.
Where does isotope come from?
From iso- (“equal”) + -tope (“place”), because the different isotopes of an element always occupy the same place in the periodic table. The term was coined by Scottish doctor Margaret Todd in 1909 and first used publicly on February 27, 1913 by English chemist Frederick Soddy.

How to pronounce isotope

  1. Open the pronunciation page — Open the Speakur entry for “isotope”.
  2. Read the phonetic spelling — Read the IPA spelling (/ˈaɪ.sə.toʊp/) so you know which sounds to aim for.
  3. Play the audio — Click Play to hear reference audio for “isotope”.
  4. Repeat and practice — Say “isotope” aloud, matching stress and vowels until it feels natural.