mac·ro·glob·u·lin·emia \ˌmakrōˌgläbyələ̇ˈnēmēə\noun (-s) Etymology: New Latin, from International Scientific Vocabulary macroglobulin + New Latin -emia : a disorder characterized by increased blood serum viscosity and by macroglobulins in the serum • mac·ro·glob·u·lin·emic\-nēmik\adjective