apophysis

/əˈpɒfɪsɪs/

//əˈpɒfɪsɪs// noun

"apophysis" is a 9-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
9
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A natural outgrowth, swelling or enlargement, usually of an organism; a protuberance on a bone.

Key facts for apophysis
PropertyValue
Headwordapophysis
LanguageEnglish
Part of speechNoun
IPA/əˈpɒfɪsɪs/
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “apophysis” sits in English frequency

apophysis falls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

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

Rare enough to double-check

apophysis is uncommon English outside the top frequency list, classed as anoun, transcribed /əˈpɒfɪsɪs/. Rarity is why readers land here mid-draft. 3 senses are on record.

No misspelling variants are generated for apophysis in our index, a straightforward case of a spelling with little room for common typos. We don't track a confusable pairing for this entry, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From Ancient Greek ἀπόφυσις (apóphusis, “offshoot”), from ἀπό (apó) + φύω (phúō, “to bring forth”), from Proto-Indo-European *bʰuH- (“to exist, to grow”). Equivalent to apo- + -physis. The correct English form is apophysis, spelled A-P-O-P-H-Y-S-I-S.

Definition

  1. 1
    A natural outgrowth, swelling or enlargement, usually of an organism; a protuberance on a bone.
  2. 2
    The external part of a cone scale.
  3. 3
    A branch of a dike or vein.

Etymology

From Ancient Greek ἀπόφυσις (apóphusis, “offshoot”), from ἀπό (apó) + φύω (phúō, “to bring forth”), from Proto-Indo-European *bʰuH- (“to exist, to grow”). Equivalent to apo- + -physis.

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 "apophysis"?
"apophysis" is spelled A-P-O-P-H-Y-S-I-S. The IPA pronunciation is /əˈpɒfɪsɪs/.
What does "apophysis" mean?
As a noun, "apophysis" means: A natural outgrowth, swelling or enlargement, usually of an organism; a protuberance on a bone.
How do you pronounce "apophysis"?
The IPA (International Phonetic Alphabet) transcription for "apophysis" is /əˈpɒfɪsɪs/. 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 "apophysis"?
From Ancient Greek ἀπόφυσις (apóphusis, “offshoot”), from ἀπό (apó) + φύω (phúō, “to bring forth”), from Proto-Indo-European *bʰuH- (“to exist, to grow”). Equivalent to apo- + -physis. 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.

Using “apophysis”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is A-P-O-P-H-Y-S-I-S - every other letter order is a misspelling in standard orthography.
  • Say it as /əˈpɒfɪsɪs/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more English words and confusable pairs in the same reference. English words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list