(1834â1908), Dutch ophthalmologist. Snellen was director of an eye clinic at Utrecht. In 1862 he introduced a test for measuring the acuteness of vision which consisted of printed letters or words in type of various sizes.
The poppy of wartime remembrance is Papaver rhoeas, the red-flowered corn poppy. This poppy is a common weed in Europe and is found in many locations, including Flanders, which is the setting of the famous poem In Flanders Fields by the Canadian surgeon and soldier John McCrae.
1 See corn poppy, Iceland poppy, opium poppy. 2  any of several similar or related plants, such as the California poppy, prickly poppy, horned poppy, and Welsh poppy. ( 3 obsolete) any of the drugs, such as opium, that are obtained from these plants. 4  a strong red to reddish-orange colour. any of numerous papaveraceous plants of the temperate genus Papaver, having red, orange, or white flowers and a milky sap. 2  See corn poppy, Iceland poppy, opium poppy.