Standard Lemma guide

gram-positive

adj · 3 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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1

adj

Meaning 1

That is stained violet by Gram's method

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: bacteriology, biology, medicine, microbiology, natural-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

That stains dark blue or violet after Gram staining, due to large quantities of peptidoglycan in the cell wall.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: bacteriology, biology, microbiology, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adjective satellite

Meaning 3

(of bacteria) being or relating to a bacterium that retains the violet stain used in Gram's method

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From Gram (“a surname”) + positive, after Danish bacteriologist Hans Christian Gram, who invented the Gram staining method.

Across languages

Translations

3 source translations are retained for this English entry.

  • Catalan: gramnpositiu — stained violet by Gram's method
  • German: grampositiv — stained violet by Gram's method
  • Italian: gram-positivo — stained violet by Gram's method