Holm·gren \ˈhȯlm-ˌgrān\ Alarik Frithiof (1831–1897), Swedish physiologist. Holmgren introduced his test for color blindness in an 1874 article.
Medical Dictionary
Holmgren yarn test
noun Holm·gren yarn test \ˈhōm-grən-ˈyärn-, ˈhōlm-\
Medical Definition of HOLMGREN YARN TEST
: a method of testing color vision by the use of colored wool yarns—called also Holmgren test, Holmgren wool test
Seen & Heard
What made you want to look up Holmgren yarn test? Please tell us where you read or heard it (including the quote, if possible).