stoichiometry

/ˌstɔɪ.kiˈɒm.ə.tɹi/

//ˌstɔɪ.kiˈɒm.ə.tɹi// noun

"stoichiometry" is a 13-letter English headword indexed on PlainSpell.

The verdict

“stoichiometry” is uncommon English (frequency #80,004 among 6,566 “S” headwords), classed as a noun. The kind of spelling people second-guess.

#80,004
frequency rank, English
6,566
“S” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The study and calculation of quantitative (measurable) relationships of the reactants and products in chemical reactions (chemical equations).

Corpus desk

Index EN-stoichiometry · stoichiometry · English

stoichiometry · rank #80,004 · 0 variants · 0 confusables

  • FREQ-RARE #80,004
  • LEN-MEGA 13 letters
  • VOW-6 6 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 6,566
  • PHOTO-FINISH stowing

Nearest frequency peer: stowing (+1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Long-tail ranks near “stoichiometry”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “stoichiometry” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for stoichiometry
PropertyValue
Headwordstoichiometry
LanguageEnglish
Part of speechNoun
IPA/ˌstɔɪ.kiˈɒm.ə.tɹi/
Letters13
Frequency rank#80,004
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “stoichiometry” in English

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).stoichiometryfalls in this rarity band:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Rare peers in the same band: “stowing” (#80,005), “steric” (#80,002), “structuralist” (#80,008). Among 6,566 “S” headwords, “stoichiometry” is #80,004. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

stoichiometry is uncommon English at frequency #80,004 among 6,566 “S” headwords, classed as anoun, transcribed /ˌstɔɪ.kiˈɒm.ə.tɹi/. Rarity is why readers land here mid-draft. 2 senses are on record.

The misspelling generator found no plausible variants for stoichiometry, since its letter sequence doesn't invite the usual edit-distance slips. We don't track a confusable pairing for this entry, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: Coined as German Stöchiometrie by Jeremias Benjamin Richter in 1792. From Ancient Greek στοιχεῖον (stoikheîon, “element”) + -metry. The correct English form is stoichiometry, spelled S-T-O-I-C-H-I-O-M-E-T-R-Y.

Definition

  1. 1
    The study and calculation of quantitative (measurable) relationships of the reactants and products in chemical reactions (chemical equations).
  2. 2
    The quantitative relationship between the reactants and products of a specific reaction or equation.

Etymology

Coined as German Stöchiometrie by Jeremias Benjamin Richter in 1792. From Ancient Greek στοιχεῖον (stoikheîon, “element”) + -metry.

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "stoichiometry"?
"stoichiometry" is spelled S-T-O-I-C-H-I-O-M-E-T-R-Y. The IPA pronunciation is /ˌstɔɪ.kiˈɒm.ə.tɹi/.
What does "stoichiometry" mean?
As a noun, "stoichiometry" means: The study and calculation of quantitative (measurable) relationships of the reactants and products in chemical reactions (chemical equations).
How do you pronounce "stoichiometry"?
The IPA (International Phonetic Alphabet) transcription for "stoichiometry" is /ˌstɔɪ.kiˈɒm.ə.tɹi/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "stoichiometry"?
Coined as German Stöchiometrie by Jeremias Benjamin Richter in 1792. From Ancient Greek στοιχεῖον (stoikheîon, “element”) + -metry. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "stoichiometry", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 13 letters (nearest by frequency rank).

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list