This section is from the book "The Engineer's And Mechanic's Encyclopaedia", by Luke Hebert. Also available from Amazon: Engineer's And Mechanic's Encyclopaedia.
Infusion, is the operation of macerating or steeping any substance in water or other fluid, hot or cold (but without boiling), so as to extract its soluble parts. The liquid thus impregnated is called an infusion.
 
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