Top Definition
to be thoroughly engrossed with facts, data, the raw materials of anything, the actual stuff
He was an amateur eytmologist, biologist, linguist and a host of other -ists. There was no limit to the things he could be infactuated with.
by Daniel Wetmore January 24, 2010
It means to date or go out with; to have relations with.
He appears to be infactuated with Tawnya.
by LeaLea May 01, 2005

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