1 As nouns the difference between xenograft and heterograft is that xenograft is a heterograft while heterograft is a tissue graft taken from a species different from that of the recipient. is that xenograft is to heterograft while heterograft is to perform a tissue graft using tissue taken from a species different from that of the recipient.
Portland, Oregon. For other uses, see Portland (disambiguation). Portland (/ËpÉËrtlÉnd/) is a seaport and the largest city in the U.S. state of Oregon and the seat of Multnomah County. It is in the Willamette Valley region of the Pacific Northwest, at the confluence of the Willamette and Columbia Rivers.
Washington County is one of the three main counties in the Portland Metropolitan Area in Oregon. This area to the west of Portland is the high-tech center of the state, including the cities of Hillsboro and Beaverton, as well as the corporate headquarters of Nike, Columbia Sportswear, and other well-known Oregon companies.