Fortified foods contain vitamin D in the form of either D2 or, more commonly, D3, which is the type produced by human skin exposed to sunlight. Salmon, tuna, swordfish and mackerel are examples of fish whose flesh contains vitamin D, notes the NIH Office of Dietary Supplements.
Definition of Wassermann test. : a test for the detection of syphilis using the Wassermann reaction âcalled also Wassermann.
Wechsler Adult Intelligence Scale (WAIS) Wechsler Adult Intelligence Scale (WAIS) is an intelligence test that is used quite commonly, and it measures the verbal and nonverbal abilities of adults. The test has been revised in recent years and is now called the WAIS-R.