exocytosis

noun

"exocytosis" is a 10-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
10
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The secretion of substances through cellular membranes, either to excrete waste products or as a regulatory function.

Corpus desk

Index EN-exocytosis · exocytosis · English

exocytosis · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 10 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "E" 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 exocytosis
PropertyValue
Headwordexocytosis
LanguageEnglish
Part of speechNoun
Letters10
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “exocytosis” in English

exocytosisfalls 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

exocytosis is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "The secretion of substances through cellular membranes, either to excrete waste products or as a regulatory function.".

The misspelling generator found no plausible variants for exocytosis, since its letter sequence doesn't invite the usual edit-distance slips. Our dataset records no confusable match here, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: From exo- + -cytosis. The correct English form is exocytosis, spelled E-X-O-C-Y-T-O-S-I-S.

Definition

  1. 1
    The secretion of substances through cellular membranes, either to excrete waste products or as a regulatory function.

Etymology

From exo- + -cytosis.

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 "exocytosis"?
"exocytosis" is spelled E-X-O-C-Y-T-O-S-I-S.
What does "exocytosis" mean?
As a noun, "exocytosis" means: The secretion of substances through cellular membranes, either to excrete waste products or as a regulatory function.
What is the origin of the word "exocytosis"?
From exo- + -cytosis. 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