meseraic adjective 1noun 1forms 3 adjective1 •(no longer used) Mesenteric.Blood is a hot, sweet, temperate, red humour, prepared in the meseraic veins, and made of the most temperate parts of the chylus in the liver […]. — 2001 noun1 •(no longer used) A mesenteric vein. formsmeseraics · more meseraic · most meseraic