Phrase guide

lusus naturae

noun · 3 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

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Received-Pronunciation: lo͞oʹsəs nətyo͝oəʹrē
  • Received-Pronunciation: lyo͞oʹsəs nətyo͝oəʹrē
  • Received-Pronunciation: /ˈluːsəs nəˈtjʊəɹiː/
  • Received-Pronunciation:
  • Southern-England: Recorded audio is listed in the source snapshot.
  • Received-Pronunciation: lo͞oʹso͞os nətyo͝oəʹrē
  • Received-Pronunciation: lyo͞oʹso͞os nətyo͝oəʹrē
  • Received-Pronunciation: /ˈluːsuːs nəˈtjʊəɹiː/
  • Received-Pronunciation: /ˈljuːsuːs nəˈtjʊəɹiː/

1

noun

Meaning 1

A sportive quality in Nature to which abnormal forms were formerly ascribed; a supposed capricious act of Nature regarded as the cause and origin of anomalies in a given organism.

Definition source: English Wiktionary via Wiktextract

Usage: historical

Qualifier: originally

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

An organism exhibiting marked such deviation from the norm, seeming to be the result of sportive design; a freak of nature.

Definition source: English Wiktionary via Wiktextract

Usage: countable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

a person or animal that is markedly unusual or deformed

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: freak, monster, monstrosity

Antonyms: none provided

Broader terms: mutant, mutation, variation, sport

Narrower terms: leviathan

History

Etymology

Learned borrowing from Latin lūsus nātūrae (literally “sport of Nature”), from lūsus (“playing, sport”) + nātūrae (“of Nature”), genitive singular of nātūra (“Nature”). Originally used to explain fossils (pre-paleontology) or abnormalities such as two-headed snakes.