ozonosphere

noun

"ozonosphere" is a 11-letter English headword indexed on PlainSpell.

The verdict

“ozonosphere” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
11
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A layer in part of the stratosphere that has a larger than normal concentration of ozone; the ozone layer.

Corpus desk

Index EN-ozonosphere · ozonosphere · English

ozonosphere · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 11 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "O" thin
  • PHOTO-UNK Peer pending

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.

Key facts for ozonosphere
PropertyValue
Headwordozonosphere
LanguageEnglish
Part of speechNoun
Letters11
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “ozonosphere” in English

ozonosphereranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

ozonosphere is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A layer in part of the stratosphere that has a larger than normal concentration of ozone; the ozone layer.".

ozonosphere has no tracked misspelling variants, a sign its spelling follows regular English conventions. It is not paired with a close-neighbour confusable in our dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: From ozone + -o- + -sphere. The correct English form is ozonosphere, spelled O-Z-O-N-O-S-P-H-E-R-E.

Definition

  1. 1
    A layer in part of the stratosphere that has a larger than normal concentration of ozone; the ozone layer.

Recorded use

Wiktionary example

These source excerpts show how ozonosphere appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. The mesosphere may be described as the earth's intermediate or middle atmosphere, which separates the thermosphere above from the ozonosphere (or stratosphere) below, both of which are responsible for absorption of most of the ultraviolet part of the solar radiation and preventing it from reaching the earth's surface.

Etymology

From ozone + -o- + -sphere.

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). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "ozonosphere"?
"ozonosphere" is spelled O-Z-O-N-O-S-P-H-E-R-E.
What does "ozonosphere" mean?
As a noun, "ozonosphere" means: A layer in part of the stratosphere that has a larger than normal concentration of ozone; the ozone layer.
What is the origin of the word "ozonosphere"?
From ozone + -o- + -sphere. 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.

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

Source: FrequencyWords open word-frequency list