Search results
Results from the WOW.Com Content Network
Viola sororia ( / vaɪˈoʊlə səˈrɔːriə / vy-OH-lə sə-ROR-ee-ə ), [ 5] known commonly as the common blue violet, is a short-stemmed herbaceous perennial plant native to eastern North America. It is known by a number of common names, including common meadow violet, purple violet, woolly blue violet, hooded violet, and wood violet.
A blue nevus is a type of coloured mole, typically a single well-defined blue-black bump. [ 1][ 2] The blue colour is caused by the pigment being deep in the skin. [ 4] Diagnosis is by visualisation and dermoscopy. [ 4] A biopsy is sometimes performed, or the whole lesion surgically removed. [ 3]
Dermatology. A melanocytic nevus (also known as nevocytic nevus, nevus-cell nevus and commonly as a mole) [ 1][ 2] is usually a noncancerous condition of pigment-producing skin cells. It is a type of melanocytic tumor that contains nevus cells. [ 2] A mole can be either subdermal (under the skin) or a pigmented growth on the skin, formed mostly ...
Melanoma is the most dangerous type of skin cancer; it develops from the melanin -producing cells known as melanocytes. [ 1 ] It typically occurs in the skin, but may rarely occur in the mouth, intestines, or eye ( uveal melanoma ). [ 1 ][ 2 ] In women, melanomas most commonly occur on the legs; while in men, on the back. [ 2 ]
A woman with dark skin. Dark skin is a type of human skin color that is rich in melanin pigments. [1] [2] [3] People with dark skin are often referred to as black people, [4] although this usage can be ambiguous in some countries where it is also used to specifically refer to different ethnic groups or populations. [5] [6] [7] [8]
Wood's glass is a deep violet-blue barium-sodium silicate glass with about 9% nickel oxide developed during World War I to block visible light for covert communications. It allows both infrared daylight and ultraviolet night-time communications by being transparent between 320 nm and 400 nm and also the longer infrared and just-barely-visible ...
Color psychology is the study of colors and hues as a determinant of human behavior. Color influences perceptions that are not obvious, such as the taste of food. Colors have qualities that can cause certain emotions in people. [ 1] How color influences individuals may differ depending on age, gender, and culture. [ 2]
Purple cauliflower contains anthocyanins. Anthocyanins (from Ancient Greek ἄνθος (ánthos) 'flower' and κυάνεος / κυανοῦς (kuáneos/kuanoûs) 'dark blue'), also called anthocyans, are water-soluble vacuolar pigments that, depending on their pH, may appear red, purple, blue, or black. In 1835, the German pharmacist Ludwig ...