Meaning

4 senses
  1. Caused by an agent that enters the host's body (such as a bacterium, virus, parasite, or prion); often, also, transmitted among hosts via any of various routes (for example, contact, droplet-borne, airborne, waterborne, foodborne, fomite-borne, or bloodborne).

    Cancer is usually not infectious.

    More infectious diseases like the flu are usually less potent.

  2. Able to infect others; capable of transmitting pathogens.

    Despite feeling better, the patient is still infectious.

    infektiös

    зара́зныйzaráznyj

  3. Spreading quickly from one person to another.

    infectious smile

    Her enthusiasm for work can be really infectious.

    ansteckend, infektiös

    зарази́тельныйzarazítelʹnyj, зара́зныйzaráznyj, инфекцио́нныйinfekciónnyj

  4. (informal)Memorable and invoking excitement or interest.

    Pop music is more infectious than elevator music.

More definitions
  • easily spread
  • caused by infection or capable of causing infection
  • of or relating to infection

Examples

53 sentences
  1. Mumps is an infectious disease.

    Свинка — інфекційне захворювання. — deniko

    ruСвинка - инфекционное заболевание. — marafon

    deMumps ist eine ansteckende Krankheit. — xtofu80

  2. Tom's enthusiasm is infectious.

    deToms Enthusiasmus ist ansteckend. — Pfirsichbaeumchen

  3. Tom's laughter is infectious.

    deToms Lachen ist ansteckend. — Waldelfe

  4. Tom's laughter was infectious.

    deToms Lachen war ansteckend. — Waldelfe

  5. Am I infectious?

    deBin ich ansteckend? — Waldelfe

Translations

7 languages
Русский
By meaning 3
able to infect others:
(of feelings and behaviour) spreading quickly between persons:
transmitted between persons as illness:
Deutsch
By meaning 2
able to infect others:
(of feelings and behaviour) spreading quickly between persons:

Origin

Borrowed from New Latin īnfectiōsus. By surface analysis, infect + -ious.

Borrowed from New Latin īnfectiōsus. By surface analysis, infect + -ious.

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infectious — meaning, examples, forms, synonyms | Krumeto