rho

noun
\ ˈrō How to pronounce rho (audio) \

Definition of rho

: the 17th letter of the Greek alphabet — see Alphabet Table

Examples of rho in a Sentence

Recent Examples on the Web As Philip Kosloki explains for Aleteia, the monogram—also known as a Christogram—superimposes the first two letters of the Greek word for Christ: chi (X) and rho (P). Isis Davis-marks, Smithsonian Magazine, 28 July 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'rho.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of rho

15th century, in the meaning defined above

History and Etymology for rho

Greek rhō, of Semitic origin; akin to Hebrew rēsh resh

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Time Traveler for rho

Time Traveler

The first known use of rho was in the 15th century

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Dictionary Entries Near rho

Rh-negative

rho

rhodamine

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Statistics for rho

Cite this Entry

“Rho.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rho. Accessed 27 May. 2022.

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