Word.ws English Dictionary

diag

diag is the abbreviation of diagnosis.

diag is the abbreviation of diagram.

diag is the abbreviation of diagnostic.

Meaning of diagnosis

Noun

diagnosis (countable and uncountable, plural diagnoses)

  1. The process of, or an instance of, identification of the nature and cause of a medical condition or illness.
    • Diagnosis is a challenging art informed by wide-ranging science.
  2. The process of, or an instance of, identification of the nature and cause of something (of any nature).
    • Diagnosis is part of being an automotive mechanic.
  3. A written description of a species or other taxon serving to distinguish that species from all others; especially a description written and published in Latin.
    • The repeated exposure, over decades, to most taxa here treated has resulted in repeated modifications of both diagnoses and discussions, as initial ideas of the various taxa underwent—often repeated—conceptual modification.1992, Rudolf M[athias] Schuster, The Hepaticae and Anthocerotae of North America: East of the Hundredth Meridian, volume V, Chicago, Ill.: Field Museum of Natural History, →ISBN, page viii

See all 4 meanings of diagnosis

Meaning of diagram

Noun

diagram (plural diagrams)

  1. A plan, drawing, sketch or outline to show the function or operation of something, or to show the relationships between the parts of a whole.
    • Electrical diagrams show device interconnections.
    Synonyms:
    schematic, scheme, schema
  2. A graph or chart.
    • A common way to represent change in state over time is via a timing diagram.1999, Bruce Powel Douglass, Doing Hard Time: Developing Real-time Systems with UML, Objects, Frameworks, and Patterns, page 520
  3. A functor from an index category to another category. The objects and morphisms of the index category need not have any internal substance, but rather merely outline the connective structure of at least some part of the diagram's codomain. If the index category is J and the codomain is C, then the diagram is said to be "of type J in C".
  4. (crosswording) A crossword grid.
    • Because you have fewer 10- to 15-letter entries in the diagram, you can make judgment calls more quickly by testing out the long ones at the outset.1998 February 11, Michelle Arnot, Crossword Puzzles For Dummies, For Dummies, →ISBN

See all 6 meanings of diagram

Forms of diag

pluraldiags

Questions about diag

What is diag the abbreviation of?
Diag is the abbreviation of diagnosis.

Words near diag in the dictionary

  1. diafiltrating
  2. diafiltration
  3. diafiltrations
  4. diaforase
  5. diafrequential
  6. diag
  7. diageneses
  8. diagenesis
  9. diagenetic
  10. diagenetically
  11. diageotropic

Source and license

Adapted from Wiktionary: diag (page history and authors); diagnosis (page history and authors); diagram (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “diag.” Word.ws, https://word.ws/diag. Based on Wiktionary, CC BY-SA 4.0.