Rh

Rh

1. (chemistry) rhodium.

Rh

1. (medicine) Abbreviation of Rhesus factor.
2. (medicine) Abbreviation of Rhesus.

• Rh disease
• Rh positive (pertaining to blood containing Rh factor D, one of 61 Rh factors)
• Rh negative (pertaining to blood missing Rh factor D, one of 61 Rh factors)
• Rh-null (pertaining to blood missing antigens for all 61 Rh factors)
• RhD (Rh factor D)

• H.R., HR, hr, hr.

• (standard) IPA^(key): /r̥iː/
  • (informal) IPA^(key): /r̥/

Rh (upper case, lower case rh)

1. The twenty-third letter of the Welsh alphabet, called rhi and written in the Latin script. It is preceded by R and followed by S.

• Rh at the beginning of words mutates to R in a soft mutation but is unchanged by nasal mutation and aspirate mutation, for example with the word rhedeg (“to run”):

• (Latin-script letters) llythyren; A a (Á á, À à,  â, Ä ä), B b, C c, Ch ch, D d, Dd dd, E e (É é, È è, Ê ê, Ë ë), F f, Ff ff, G g, Ng ng, H h, I i (Í í, Ì ì, Πî, Ï ï), J j, L l, Ll ll, M m, N n, O o (Ó ó, Ò ò, Ô ô, Ö ö), P p, Ph ph, R r, Rh rh, S s, T t, Th th, U u (Ú ú, Ù ù, Û û, Ü ü), W w (Ẃ ẃ, Ẁ ẁ, Ŵ ŵ, Ẅ ẅ), Y y (Ý ý, Ỳ ỳ, Ŷ ŷ, Ÿ ÿ)

• R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “Rh”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies

• IPA^(key): /x/

Rh (lower case rh)

1. A digraph in Xhosa orthography.