Standard Lemma guide

plasmid

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

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  • /ˈplæzmɪd/
  • Southern-England: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

A loop of double-stranded DNA that is separate from — and replicates independently of — the chromosomes; such loops are most commonly found in bacteria, but they are also sometimes found in archaeans and eukaryotic cells, and they are used in genetic engineering as a vector for gene transfer.

Definition source: English Wiktionary via Wiktextract

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

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a small cellular inclusion consisting of a ring of DNA that is not in a chromosome but is capable of autonomous replication

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: plasmid DNA

Antonyms: none provided

Broader terms: inclusion body, cellular inclusion, inclusion

History

Etymology

From plasma + -id, coined by American molecular biologist Joshua Lederberg in 1952.

Across languages

Translations

25 source translations are retained for this English entry.

  • Asturian: plásmidu — loop of double-stranded DNA that is separate from the chromosomes
  • Bulgarian: плазми́д (plazmíd) — loop of double-stranded DNA that is separate from the chromosomes
  • Catalan: plasmidi — loop of double-stranded DNA that is separate from the chromosomes
  • Chinese Mandarin: 質粒 /质粒 (zhìlì) — loop of double-stranded DNA that is separate from the chromosomes
  • Czech: plazmid — loop of double-stranded DNA that is separate from the chromosomes
  • Dutch: plasmide — loop of double-stranded DNA that is separate from the chromosomes
  • Esperanto: plasmido — loop of double-stranded DNA that is separate from the chromosomes
  • Finnish: plasmidi — loop of double-stranded DNA that is separate from the chromosomes
  • French: plasmide — loop of double-stranded DNA that is separate from the chromosomes
  • German: Plasmid — loop of double-stranded DNA that is separate from the chromosomes
  • Hungarian: plazmid — loop of double-stranded DNA that is separate from the chromosomes
  • Italian: plasmidio — loop of double-stranded DNA that is separate from the chromosomes
  • Italian: plasmide — loop of double-stranded DNA that is separate from the chromosomes
  • Kazakh: плазмида (plazmida) — loop of double-stranded DNA that is separate from the chromosomes
  • Kazakh: плазмид (plazmid) — loop of double-stranded DNA that is separate from the chromosomes
  • Norwegian Bokmål: plasmid — loop of double-stranded DNA that is separate from the chromosomes
  • Norwegian Nynorsk: plasmid — loop of double-stranded DNA that is separate from the chromosomes
  • Polish: plazmid — loop of double-stranded DNA that is separate from the chromosomes
  • Portuguese: plasmídeo — loop of double-stranded DNA that is separate from the chromosomes
  • Portuguese: plasmídio — loop of double-stranded DNA that is separate from the chromosomes
  • Romanian: plasmidă — loop of double-stranded DNA that is separate from the chromosomes
  • Russian: плазми́да (plazmída) — loop of double-stranded DNA that is separate from the chromosomes
  • Spanish: plásmido — loop of double-stranded DNA that is separate from the chromosomes
  • Swedish: plasmid — loop of double-stranded DNA that is separate from the chromosomes
  • Turkish: plazmit — loop of double-stranded DNA that is separate from the chromosomes