Meaning : Fill, as with a certain quality.
Example :
The heavy traffic tinctures the air with carbon monoxide.
Synonyms : impregnate, instill, tincture
Meaning : Undergo the process of infusion.
Example :
The mint tea is infusing.
Meaning : Let sit in a liquid to extract a flavor or to cleanse.
Example :
Steep the blossoms in oil.
Steep the fruit in alcohol.
Synonyms : steep
Meaning : Introduce into the body through a vein, for therapeutic purposes.
Example :
Some physiologists infuses sugar solutions into the veins of animals.