Standard Lemma guide

protozoan

adj · 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

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.

  • UK: /ˌpɹəʊ.təˈzəʊ.ən/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • US: /ˌpɹoʊ.təˈzoʊ.ən/
  • rhymes with -əʊən
  • CMU ARPABET: P R OW2 T AH0 Z OW1 AH0 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Of, pertaining to, or characteristic of a protozoan.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

Any of the diverse group of eukaryotes, of the phylum Protozoa, that are primarily unicellular, existing singly or aggregating into colonies, are usually nonphotosynthetic, and are often classified further into phyla according to their capacity for and means of motility, as by pseudopods, flagella, or cilia.

Definition source: English Wiktionary via Wiktextract

Topics: biology, cytology, medicine, natural-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: protozoon, protozooid, Protozoa

Antonyms: none provided

Broader terms: protist, eukaryote, organism

3

adjective

Meaning 3

of or relating to the Protozoa

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: protozoal, protozoic

Antonyms: none provided

4

noun

Meaning 4

any of diverse minute acellular or unicellular organisms usually nonphotosynthetic

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: protozoon

Antonyms: none provided

Broader terms: protoctist

Narrower terms: sarcodinian, sarcodine, rhizopod, rhizopodan, arcella, difflugia, ciliate, ciliated protozoan, ciliophoran, euglena, flagellate, flagellate protozoan, flagellated protozoan, mastigophoran, mastigophore, plantlike flagellate, sporozoan

History

Etymology

From translingual Protozoa + -an, equivalent to proto- + -zoan.

Across languages

Translations

31 source translations are retained for this English entry.

  • French: protozoaire — pertaining to a protozoan
  • Irish: prótasónach — pertaining to a protozoan
  • Polish: pierwotniakowy — pertaining to a protozoan
  • Portuguese: protozoário — pertaining to a protozoan
  • Spanish: protozoario — pertaining to a protozoan
  • Spanish: protozoo — pertaining to a protozoan
  • Tagalog: mulhayin — pertaining to a protozoan
  • Afrikaans: protosoön — any of a diverse group of eukaryotes
  • Armenian: նախակենդանի (naxakendani) — any of a diverse group of eukaryotes
  • Catalan: protozou — any of a diverse group of eukaryotes
  • Chinese Mandarin: 原生動物 /原生动物 (yuánshēng dòngwù) — any of a diverse group of eukaryotes
  • Czech: prvok — any of a diverse group of eukaryotes
  • Finnish: alkueläin — any of a diverse group of eukaryotes
  • French: protozoaire — any of a diverse group of eukaryotes
  • German: Protozoon — any of a diverse group of eukaryotes
  • Hungarian: egysejtű — any of a diverse group of eukaryotes
  • Icelandic: frumdýr — any of a diverse group of eukaryotes
  • Irish: prótasón — any of a diverse group of eukaryotes
  • Italian: protozoo — any of a diverse group of eukaryotes
  • Japanese: 原生動物 (gensei dōbutsu) — any of a diverse group of eukaryotes
  • Korean: 원생동물 (wonsaengdongmul) — any of a diverse group of eukaryotes
  • Macedonian: праживотно (praživotno) — any of a diverse group of eukaryotes
  • Māori: hātare pītautahi — any of a diverse group of eukaryotes
  • Polish: pierwotniak — any of a diverse group of eukaryotes
  • Portuguese: protozoário — any of a diverse group of eukaryotes
  • Russian: просте́йшее живо́тное (prostéjšeje živótnoje) — any of a diverse group of eukaryotes
  • Spanish: protozoo — any of a diverse group of eukaryotes
  • Spanish: protozoario — any of a diverse group of eukaryotes
  • Tagalog: mulhay — any of a diverse group of eukaryotes
  • Vietnamese: động vật nguyên sinh — any of a diverse group of eukaryotes
  • Welsh: protosoad — any of a diverse group of eukaryotes
Real reading context

protozoan in complete knowledge articles