Standard Lemma guide

flatworm

noun · 2 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.

  • US: /ˈflæt.wəɹm/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: F L AE1 T W ER0 M Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

Any of very many parasitic or free-living worms, of the phylum Platyhelminthes, having a flattened body with no skeleton or body cavity.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: platyhelminth

Antonyms: none provided

2

noun

Meaning 2

parasitic or free-living worms having a flattened body

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: platyhelminth

Antonyms: none provided

Broader terms: worm

Narrower terms: planarian, planaria, fluke, trematode, trematode worm, tapeworm, cestode

History

Etymology

From flat + worm, a calque of taxonomic name Platyhelminthes.

Across languages

Translations

40 source translations are retained for this English entry.

  • Arabic: دُودَة مُسَطَّحَة — worm of Platyhelminthes
  • Azerbaijani: yastı qurd — worm of Platyhelminthes
  • Bashkir: яҫы селәүсен (yaśı seləwsen) — worm of Platyhelminthes
  • Basque: platelminto — worm of Platyhelminthes
  • Belarusian: пло́скі чарвя́к (plóski čarvják) — worm of Platyhelminthes
  • Catalan: platihelmint — worm of Platyhelminthes
  • Chinese Mandarin: 扁形動物 /扁形动物 (biǎnxíng dòngwù) — worm of Platyhelminthes
  • Czech: ploštěnec — worm of Platyhelminthes
  • Danish: fladorm — worm of Platyhelminthes
  • Dutch: platworm — worm of Platyhelminthes
  • Esperanto: platvermo — worm of Platyhelminthes
  • Finnish: laakamato — worm of Platyhelminthes
  • French: ver plat — worm of Platyhelminthes
  • German: Plattwurm — worm of Platyhelminthes
  • Greek: πλατυέλμινθας (platyélminthas) — worm of Platyhelminthes
  • Hungarian: laposféreg — worm of Platyhelminthes
  • Hunsrik: Plattworrem — worm of Platyhelminthes
  • Icelandic: flatormur — worm of Platyhelminthes
  • Irish: péist phlánach — worm of Platyhelminthes
  • Italian: platelminte — worm of Platyhelminthes
  • Italian: verme piatto — worm of Platyhelminthes
  • Japanese: 扁形動物 (henkei dōbutsu) — worm of Platyhelminthes
  • Kazakh: жалпақ құрт (jalpaq qūrt) — worm of Platyhelminthes
  • Korean: 편형동물 (pyeonhyeongdongmul) — worm of Platyhelminthes
  • Macedonian: спле́скан црв (spléskan crv) — worm of Platyhelminthes
  • Navajo: chʼoshtʼą́hí — worm of Platyhelminthes
  • Polish: płaziniec — worm of Platyhelminthes
  • Portuguese: platelminto — worm of Platyhelminthes
  • Quechua: pampa kuru — worm of Platyhelminthes
  • Russian: пло́ский червь (plóskij červʹ) — worm of Platyhelminthes
  • Slovak: ploskavec — worm of Platyhelminthes
  • Spanish: platelminto — worm of Platyhelminthes
  • Spanish: gusano plano — worm of Platyhelminthes
  • Tagalog: lapyulod — worm of Platyhelminthes
  • Tamil: தட்டைப்புழு (taṭṭaippuḻu) — worm of Platyhelminthes
  • Thai: หนอนตัวแบน (nɔ̌ɔn-dtuua-bɛɛn) — worm of Platyhelminthes
  • Turkish: yassı solucan — worm of Platyhelminthes
  • Ukrainian: пло́ский черв (plóskyj červ) — worm of Platyhelminthes
  • Vietnamese: giun dẹp — worm of Platyhelminthes
  • Vietnamese: sán — worm of Platyhelminthes