gram

/græm/
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gram

A scientist uses a gram scale to measure a small amount of powder.

Definition
  1. Noun:
    • A metric unit of mass: A unit of weight in the metric system equal to one thousandth (1/1000) of a kilogram. It is the base unit of mass in the centimeter-gram-second (CGS) system of units.
    • A person's name (eponym): Refers to Hans Christian Joachim Gram, a Danish bacteriologist known for developing the Gram stain, a laboratory technique used to classify bacteria.
Examples of Usage
  • As a unit of mass:
    • This letter weighs less than 20 grams.
    • The recipe calls for 250 grams of flour.
  • As an eponym (typically capitalized in this context):
    • The bacteria were identified using the Gram stain.
    • Gram-positive bacteria have a different cell wall structure than Gram-negative bacteria.
Advanced Usage
  • "Gram" as a suffix in measurement: Used in compound words to denote a weight of one thousand units (e.g., kilogram, milligram). However, note that these are distinct compound words, not the target word 'gram' itself.
  • Scientific terminology: In microbiology, the terms "Gram-positive" and "Gram-negative" are standard classifications derived from Hans Christian Gram's staining method. The 'Gram' in these terms is a proper adjective.
Variants and Related Words
  • Gramme: An alternative, chiefly British, spelling of 'gram' (as a unit of mass). The spelling 'gram' is more common in American English.
  • Gram-negative (adj): Describing bacteria that do not retain the crystal violet stain used in the Gram stain method.
  • Gram-positive (adj): Describing bacteria that retain the crystal violet stain and appear purple under a microscope.
Synonyms
  • g (abbreviation): The standard abbreviation for gram.
  • gm (abbreviation): A less common abbreviation for gram.
Related Phrases and Compounds

(Note: The following are common compound terms, not phrasal verbs of the single word 'gram') - Gram stain (n): The differential staining technique developed by Hans Christian Gram. - Gram molecule (n, archaic): An older term for a mole, the unit of amount of substance. - Gram atom (n, archaic): An older term for the atomic weight of an element expressed in grams.

Related Idioms

(There are no common idioms based solely on the word 'gram'.)

gram

A scientist uses a gram scale to measure a small amount of powder.

Noun
  1. Danish physician and bacteriologist who developed a method of staining bacteria to distinguish among them (1853-1938)
  2. a metric unit of weight equal to one thousandth of a kilogram

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