1830–40; < New Latin, arbitrary use of Latin Rhēsus name of a Thracian king allied with Troy < Greek Rhêsos
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To get a clearer picture, Tafazoli trained two male rhesus macaques to carry out three related tasks while recording activity across their brains.
From Science Daily ● Nov. 28, 2025
On a tiny island called Cayo Santiago off the coast of Puerto Rico exists a colony of about 1,800 rhesus macaques.
From Salon ● Mar. 16, 2025
They also isolated two antibodies from rhesus macaques -- a species of monkey with immune systems like humans' -- who previously had received a vaccine regimen designed to generate fusion peptide-directed antibodies.
From Science Daily ● Jan. 17, 2024
The first macaque monkeys were cloned in 2018, but rhesus monkeys are preferred for medical researchers, because of their genetic similarity to humans.
From BBC ● Jan. 16, 2024
His voice was as loud as the scolding of a rhesus monkey high in the sundari trees.
From "Tiger Boy" by Mitali Perkins
Macaque species score even lower, ranging from 2.3% in Japanese macaques to just 1% in Rhesus macaques.
From Science Daily ● Jan. 22, 2026
Zika, a mosquito-borne virus first identified in 1947 in a Rhesus macaque monkey, continues to perplex scientists in many ways nearly 80 years later.
From Salon ● Feb. 3, 2025
She said Gary had been born with Rhesus disease, a condition where antibodies in a pregnant woman's blood destroy her baby's blood cells.
From BBC ● Mar. 16, 2023
Rhesus macaques infected with SARS-CoV-2 could not be reinfected at just under one month following their initial infection, according to an unreviewed study4 by researchers at Peking Union Medical College in Beijing.
From Nature ● Apr. 17, 2020
On this theory the Alexandrians when looking for the Rhesus of Euripides found an anonymous play called Rhesus and accepted it for what it was worth.
From The Rhesus of Euripedes by Euripedes
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.
