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.
UK:/ˌfaɪ.təˈplæŋk.tən/
UK:/ˌfaɪ.təʊˈplæŋk.tən/
US:/ˌfaɪ.təˈplæŋk.tən/
US:/ˌfaɪ.toʊˈplæŋk.tən/
US:Recorded audio is listed in the source snapshot.
CMU ARPABET:F AY2 T OW0 P L AE1 NG T AH0 N
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
Plankton, especially those small in size, that obtain energy by photosynthesis.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
photosynthetic or plant constituent of plankton; mainly unicellular algae
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: plant, flora, plant life
Narrower terms: planktonic algae, diatom
History
Etymology
From phyto- + plankton. From Ancient Greek φυτόν (phutón, “plant”) + πλαγκτόν (planktón), neuter of πλαγκτός (planktós, “wandering”). However, they are no longer classified as plants, so the terminology is showing a historical meaning.
Across languages
Translations
10 source translations are retained for this English entry.
Finnish:
kasviplankton
— plankton that obtain energy through photosynthesis
French:
phytoplancton
— plankton that obtain energy through photosynthesis
Georgian:
ფიტოპლანქტონი
(piṭoṗlankṭoni)
— plankton that obtain energy through photosynthesis
German:
Phytoplankton
— plankton that obtain energy through photosynthesis
Greek:
φυτοπλαγκτόν
(fytoplagktón)
— plankton that obtain energy through photosynthesis
Polish:
fitoplankton
— plankton that obtain energy through photosynthesis
Russian:
фитопланктон
(fitoplankton)
— plankton that obtain energy through photosynthesis
Spanish:
fitoplancton
— plankton that obtain energy through photosynthesis
Swedish:
fytoplankton
— plankton that obtain energy through photosynthesis
Telugu:
వృక్షప్లవకము
(vr̥kṣaplavakamu)
— plankton that obtain energy through photosynthesis