citosina

[sit̪oˈsina]

/[sit̪oˈsina]/ noun

By · According to Wiktionary data (CC BY-SA) ·

The verdict

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

Unranked
below top-frequency Spanish
8
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Una de las cinco bases nitrogenadas que forman parte de los ácidos nucleicos. Se representa con la letra C.

Key facts for citosina
PropertyValue
Headwordcitosina
LanguageSpanish
Part of speechNoun
IPA[sit̪oˈsina]
Letters8
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “citosina” sits in Spanish frequency

citosina falls outside the top-100,000 ranked Spanish 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

citosina is uncommon Spanish outside the top frequency list, classed as anoun, transcribed [sit̪oˈsina]. Rarity is why readers land here mid-draft. Gloss: "Una de las cinco bases nitrogenadas que forman parte de los ácidos nucleicos. Se representa con la letra C.".

citosina doesn't appear in our generated misspelling index, a sign its spelling follows regular Spanish conventions. 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.

No borrowing history is documented for this entry, so its spelling is easiest explained by how it's pronounced rather than where it came from. The correct Spanish form is citosina, spelled C-I-T-O-S-I-N-A.

Definition

  1. 1
    Una de las cinco bases nitrogenadas que forman parte de los ácidos nucleicos. Se representa con la letra C.

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 "citosina"?
"citosina" is spelled C-I-T-O-S-I-N-A. The IPA pronunciation is [sit̪oˈsina].
What does "citosina" mean?
As a noun, "citosina" means: Una de las cinco bases nitrogenadas que forman parte de los ácidos nucleicos. Se representa con la letra C.
How do you pronounce "citosina"?
The IPA (International Phonetic Alphabet) transcription for "citosina" is [sit̪oˈsina]. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "citosina" come from?
"citosina" is a Spanish word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
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 “citosina”

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

  • The one correct Spanish spelling is C-I-T-O-S-I-N-A - every other letter order is a misspelling in standard orthography.
  • Say it as [sit̪oˈsina] (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more Spanish words and confusable pairs in the same reference. Spanish 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