hy·per·e·mia noun orhy·per·ae·mia\ˌhīpəˈrēmēə\ (-s) Etymology: New Latin, from hyper- + -emia, -aemia : excess of blood in a body part (as from active dilation of blood vessels or from obstruction of blood flow) • hy·per·e·mic\| ̷ ̷ ̷ ̷|rēmik\adjective