Standard Lemma guide

femur

noun · 4 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • /ˈfiːmə(ɹ)/
  • US: Recorded audio is listed in the source snapshot.
  • rhymes with -iːmə(ɹ)
  • CMU ARPABET: F IY1 M ER0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A thighbone.

Definition source: English Wiktionary via Wiktextract

Topics: anatomy, medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

The middle segment of the leg of an insect, between the trochanter and the tibia.

Definition source: English Wiktionary via Wiktextract

Topics: biology, entomology, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

A segment of the leg of an arachnid.

Definition source: English Wiktionary via Wiktextract

Topics: arachnology, biology, natural-sciences, zoology

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

the longest and thickest bone of the human skeleton; extends from the pelvis to the knee

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: thighbone, femoris

Antonyms: none provided

Broader terms: leg bone

History

Etymology

Borrowed from Latin femur (“thigh”).

Across languages

Translations

8 source translations are retained for this English entry.

  • Catalan: fèmur — segment of insect’s leg
  • Finnish: reisi — segment of insect’s leg
  • German: Femur — segment of insect’s leg
  • Hebrew: קוּלִית (qulít) — segment of insect’s leg
  • Northern Kurdish: hestiyê ran — segment of insect’s leg
  • Polish: udo — segment of insect’s leg
  • Russian: бедро́ (bedró) — segment of insect’s leg
  • Spanish: fémur — segment of insect’s leg
Real reading context

femur in complete knowledge articles