rh factor

Rh fac·tor

R r

Transcription

- US Pronunciation
- US IPA
- [ahr-eych fak-ter]
- /ˈɑrˈeɪtʃ ˌfæk tər/

- US Pronunciation
- US IPA
- [ahr-eych fak-ter]
- /ˈɑrˈeɪtʃ ˌfæk tər/

Definitions of rh factor words

noun rh factor any of a type of specific antigen present on the surface of red blood cells, persons having inherited such antigens being designated Rh+ (Rh positive) and persons lacking them, a much smaller group, being designated Rh− (Rh negative) blood of Rh− persons is incompatible with Rh+ blood because of antibody reaction, and an Rh− woman who bears an Rh+ baby will have formed antibodies to the fetal blood that, unless removed from her bloodstream by apheresis in a subsequent pregnancy, will be carried across the placenta and destroy red blood cells of the next Rh+ fetus, resulting in erythroblastosis in the newborn. 1
uncountable noun rh factor The Rh factor is the same as the rhesus factor. 0
noun rh factor an agglutinogen commonly found in human blood: it may cause a haemolytic reaction, esp during pregnancy or following transfusion of blood that does not contain this agglutinogen 0
noun rh factor a group of antigens, determined by heredity and usually present in human red blood cells, which may cause hemolytic reactions during pregnancy or after transfusion of blood containing this factor into someone lacking it 0

See all 4 definitions of rh factor

Information block about the term

Origin of rh factor

First appearance:

before 1940

One of the 7% newest English words

First recorded in 1940-45; so called because first found in the blood of rhesus monkeys

Historical Comparancy

Parts of speech for Rh factor

noun

adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

Full grammatical hierarchy of Rh factor

rh factor popularity

A pretty common term. Usually people know it’s meaning, but prefer to use a more spread out synonym. About 36% of English native speakers know the meaning and use word.

According to our data about 57% of words is more used. This is a rare but used term. It occurs in the pages of specialized literature and in the speech of educated people.

rh factor usage trend in Literature

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