[ ih-rith-roh-bla-stoh-sis ]

  1. the presence of erythroblasts in the blood.

  2. Also called eryth·roblasto·sis fe·tal·is [fi-tal-is], /fɪˈtæl ɪs/, erythroblasto·sis ne·o·na·to·rum [nee-uh-nuh-tawr-uhm, -tohr-]. /ˌni ə nəˈtɔr əm, -ˈtoʊr-/. this condition in the fetus or newborn, usually caused by an Rh incompatibility between mother and baby.

Origin of erythroblastosis

First recorded in 1930–35; erythroblast + -osis

Other words from erythroblastosis

  • e·ryth·ro·blas·tot·ic [ih-rith-roh-bla-stot-ik], /ɪˌrɪθ roʊ blæˈstɒt ɪk/, adjective

Words Nearby erythroblastosis Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

British Dictionary definitions for erythroblastosis


/ (ɪˌrɪθrəʊblæˈstəʊsɪs) /

  1. the abnormal presence of erythroblasts in the circulating blood

  2. Also called: erythroblastosis fetalis an anaemic blood disease of a fetus or newborn child, characterized by erythroblasts in the circulating blood: caused by a blood incompatibility between mother and fetus

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012