erythroblastosis fetalis

noun

erythroblastosis fe·​ta·​lis -fi-ˈta-ləs How to pronounce erythroblastosis fetalis (audio)
: a hemolytic disease of the fetus and newborn that occurs when the immune system of an Rh-negative mother produces antibodies to an antigen in the blood of an Rh-positive fetus which cross the placenta and destroy fetal erythrocytes and that is characterized by an increase in circulating erythroblasts and by jaundice

Word History

Etymology

New Latin, fetal erythroblastosis

First Known Use

circa 1934, in the meaning defined above

Time Traveler
The first known use of erythroblastosis fetalis was circa 1934

Dictionary Entries Near erythroblastosis fetalis

Cite this Entry

“Erythroblastosis fetalis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/erythroblastosis%20fetalis. Accessed 27 Jan. 2023.

Kids Definition

erythroblastosis fetalis

noun
eryth·​ro·​blas·​to·​sis fe·​ta·​lis
i-ˌrith-rə-ˌblas-ˈtō-səs-fi-ˈtal-əs
: a disease of fetuses and newborn babies that occurs when the system of an Rh-negative mother produces antibodies which destroy the red blood cells of an Rh-positive fetus

Medical Definition

erythroblastosis fetalis

noun
erythroblastosis fe·​ta·​lis -fi-ˈtal-əs How to pronounce erythroblastosis fetalis (audio)
: a hemolytic disease of the fetus and newborn that is characterized by an increase in circulating erythroblasts and by jaundice and that occurs when the immune system of an Rh-negative mother produces antibodies to an antigen in the blood of an Rh-positive fetus which cross the placenta and destroy fetal red blood cells

called also hemolytic disease of the newborn, Rh disease

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