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Rh

1 American  

abbreviation

Physiology.

  1. Rh factor.

Rh 2 American  
Symbol, Chemistry.

  1. rhodium.

RH 3 American  
Or rh

abbreviation

Meteorology.

  1. relative humidity.

r.h. 4 American  

abbreviation

  1. right hand.

R.H. 5 American  

abbreviation

  1. Royal Highness.

Rh 1 British  

symbol

  1. rhodium

"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

abbreviation

  1. rhesus (esp in Rh factor )

"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
RH 2 British  

abbreviation

  1. Royal Highness

  2. (Republic of) Haiti (international car registration)

"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
rh 3 British  

abbreviation

  1. right hand

"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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Local and regional blood banks are particularly low on platelets and types O and Rh negative blood, the department said Wednesday.

From Seattle Times • Oct. 26, 2023

A trait that displays simple dominance is the Rhesus, or Rh, blood group.

From Textbooks • Jan. 1, 2018

When identifying a patient’s blood type, the Rh group is designated by adding the word positive or negative to the ABO type.

From Textbooks • Jun. 19, 2013

If Rh− individuals receiving blood have had prior exposure to Rh antigen, antibodies for this antigen may be present in the blood and trigger agglutination to some degree.

From Textbooks • Jun. 19, 2013

Rh is used in words derived from the Greek, as myrrh, myrrhine, catarrhous, rheum, rheumatick, rhyme.

From A Grammar of the English Tongue by Johnson, Samuel

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.