infusion

From Middle English infusioun, from Old French infusion, from Latin infusio, infusionem (“a pouring into, a wetting, a dyeing, a flow”), from infundo.

• IPA^(key): /ɪnˈfjuːʒən/

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• Rhymes: -uːʒən

infusion (countable and uncountable, plural infusions)

1. A product consisting of a liquid which has had other ingredients steeped in it to extract useful qualities.

   An extract of rooibos and chamomile makes a refreshing infusion.

2. The act of steeping or soaking a substance in liquid so as to extract medicinal or herbal qualities.
3. The act of installing a quality into a person.
   • c. 1599–1602 (date written), William Shakespeare, “The Tragedie of Hamlet, Prince of Denmarke”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act V, scene i]:

     [...] but in the verity of extolment / I take him to be a soul of great article and his infusion / of such dearth and rareness as, to make true diction of / him, his semblable in his mirror, and who else would / trace him, his umbrage, nothing more.

4. (obsolete) The act of dipping into a fluid.
5. (medicine) The administration of liquid substances directly into a vein for medical purposes; perfusion.

• infuse

Inherited from Old French, from Latin īnfūsiōnem.

• IPA^(key): /ɛ̃.fy.zjɔ̃/

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infusion f (plural infusions)

1. infusion (liquid product which has had other ingredients steeped in it to extract useful qualities)

   Synonyms: décoction, tisane

• “infusion”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.