tritanopia, blue-blindness
(noun) rare form of dichromacy characterized by a lowered sensitivity to blue light resulting in an inability to distinguish blue and yellow
Source: WordNet® 3.1
tritanopia (countable and uncountable, plural tritanopias)
A form of color blindness in which the retina is deficient in or lacks cone cells containing opsins that respond to the color blue, resulting in an inability to distinguish blue from green.
• (form of color blindness): color blindness, blue-yellow color blindness
• patriation
Source: Wiktionary
21 April 2025
(noun) a reference work (often in several volumes) containing articles on various topics (often arranged in alphabetical order) dealing with the entire range of human knowledge or with some particular specialty
The first coffee-house in Mecca dates back to the 1510s. The beverage was in Turkey by the 1530s. It appeared in Europe circa 1515-1519 and was introduced to England by 1650. By 1675 the country had more than 3,000 coffee houses, and coffee had replaced beer as a breakfast drink.
