planktonic

/plaŋkˈtɒnɪk/

//plaŋkˈtɒnɪk// adj

By · According to Wiktionary data (CC BY-SA) ·

"planktonic" is a 10-letter English headword indexed on PlainSpell.

The verdict

“planktonic” is uncommon English (frequency #72,653 among 4,417 “P” headwords), classed as an adjective. The kind of spelling people second-guess.

#72,653
frequency rank, English
4,417
“P” headwords

According to Wiktionary data (CC BY-SA, analyzed September 2, 2026) - Of or pertaining to plankton.

Corpus desk

Index EN-planktonic · planktonic · English

planktonic · rank #72,653 · 0 variants · 0 confusables

  • FREQ-RARE #72,653
  • LEN-MEGA 10 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 4,417
  • PHOTO-FINISH piquant

Nearest frequency peer: piquant (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Frequency neighbourhood for “planktonic”

Lower corpus rank = more everyday usage (inverted bar length for readability)

corpus weight

What this shows Bars show where “planktonic” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.

Source FrequencyWords open word-frequency list As of September 2, 2026
Key facts for planktonic
PropertyValue
Headwordplanktonic
LanguageEnglish
Part of speechAdjective
IPA/plaŋkˈtɒnɪk/
Letters10
Frequency rank#72,653
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “planktonic” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). planktonic lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

planktonic is uncommon English at frequency #72,653 among 4,417 “P” headwords, classed as anadjective, transcribed /plaŋkˈtɒnɪk/. Rarity is why readers land here mid-draft. 2 senses are on record.

Our edit-distance generator produced no likely misspellings for planktonic, typically a sign the spelling maps closely to how the word sounds. No close-neighbour confusable shows up for this headword in our dataset, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: From plankton + -ic, after German planktonisch. From Ancient Greek πλαγκτόν (planktón, “drifting”), neuter nominative of πλαγκτός (planktós), from πλάζομαι (plázomai, “to wander, drift”), from πλάζω (plázō, “to cause to wander, drive astray”). The correct English form is planktonic, spelled P-L-A-N-K-T-O-N-I-C.

Definition

  1. 1
    Of or pertaining to plankton.
  2. 2
    Floating in the open sea rather than living on the seafloor.

Recorded use

Wiktionary example

These source excerpts show how planktonic appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Tiny shells of planktonic animals rain down from the surface waters of the ocean on to the deep sea-floor.

Etymology

From plankton + -ic, after German planktonisch. From Ancient Greek πλαγκτόν (planktón, “drifting”), neuter nominative of πλαγκτός (planktós), from πλάζομαι (plázomai, “to wander, drift”), from πλάζω (plázō, “to cause to wander, drive astray”).

This word in other languages

planctónico(Español)planctonique(Français)

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of September 2, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.

Frequently Asked Questions

How do you spell "planktonic"?
"planktonic" is spelled P-L-A-N-K-T-O-N-I-C. The IPA pronunciation is /plaŋkˈtɒnɪk/.
What does "planktonic" mean?
As an adjective, "planktonic" means: Of or pertaining to plankton.
How do you pronounce "planktonic"?
The IPA (International Phonetic Alphabet) transcription for "planktonic" is /plaŋkˈtɒnɪk/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "planktonic"?
From plankton + -ic, after German planktonisch. From Ancient Greek πλαγκτόν (planktón, “drifting”), neuter nominative of πλαγκτός (planktós), from πλάζομαι (plázomai, “to wander, drift”), from πλάζω (plázō, “to cause to wander, drive astray”). See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "planktonic", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 10 letters (nearest by frequency rank).

perversity#72,637pentatonic#72,634quartering#72,683radiologic#72,689
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list