luteotropin

noun

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

The verdict

“luteotropin” 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) - Prolactin; a peptide gonadotrophic hormone secreted by the pituitary gland that stimulates growth of the mammary glands and lactation in females.

Corpus desk

Index EN-luteotropin · luteotropin · English

luteotropin · 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 "L" 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 luteotropin
PropertyValue
Headwordluteotropin
LanguageEnglish
Part of speechNoun
Letters11
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “luteotropin” in English

luteotropinsits beyond the 100,000 most-frequent English words, in the long tail of technical, archaic, or otherwise rare vocabulary where spelling doubt tends to strike hardest.

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

Rare enough to double-check

luteotropin is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Prolactin; a peptide gonadotrophic hormone secreted by the pituitary gland that stimulates growth of the mammary glands and lactation in females.".

The misspelling generator found no plausible variants for luteotropin, and the word's spelling is regular enough that our generator found nothing worth flagging. This entry stands alone in our confusable dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: From luteo- + tropin. The correct English form is luteotropin, spelled L-U-T-E-O-T-R-O-P-I-N.

Definition

  1. 1
    Prolactin; a peptide gonadotrophic hormone secreted by the pituitary gland that stimulates growth of the mammary glands and lactation in females.

Etymology

From luteo- + tropin.

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 "luteotropin"?
"luteotropin" is spelled L-U-T-E-O-T-R-O-P-I-N.
What does "luteotropin" mean?
As a noun, "luteotropin" means: Prolactin; a peptide gonadotrophic hormone secreted by the pituitary gland that stimulates growth of the mammary glands and lactation in females.
What is the origin of the word "luteotropin"?
From luteo- + tropin. 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