hemagglutinate

[ hee-muh-gloot-n-eyt, hem-uh- ]
/ ˌhi məˈglut nˌeɪt, ˌhɛm ə- /

verb (used with or without object), he·mag·glu·ti·nat·ed, he·mag·glu·ti·nat·ing.

(of red blood cells) to clump.

Origin of hemagglutinate

First recorded in 1920–25; hem- + agglutinate
Related formshe·mag·glu·tin·a·tive [hee-muh-gloot-n-ey-tiv, -uh-tiv, hem-uh-] /ˌhi məˈglut nˌeɪ tɪv, -ə tɪv, ˌhɛm ə-/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019