(Encyclopedia) calorie, abbr. cal, unit of heat energy in the metric system. The measurement of heat is called calorimetry. The calorie, or gram calorie, is the quantity of heat required to raise the…
(Encyclopedia) tetracyclinetetracyclinetĕˌtrəsīˈklēn [key], any of a group of antibiotics produced by bacteria of the genus Streptomyces. Effective against a wide range of Gram positive and Gram…
(Encyclopedia) Persons or Parsons, RobertPersons or Parsons, Robertboth: pärˈsənz [key], 1546–1610, English Jesuit missionary. He left a fellowship at Balliol College, Oxford, and went to the…
(Encyclopedia) lincomycinlincomycinlĭngˌkōmīˈsĭn [key], antibiotic isolated from bacteria of the genus Streptomyces. Similar in activity to erythromycin, it is effective against most gram-positive…
fashion designerBorn: April 9, 1963Birthplace: New York City, New York When Marc Jacobs was seven years old, his father died. According to Jacobs, his mother was mentally…
(Encyclopedia) ampicillinampicillinămˌpĭsĭlˈĭn [key], a penicillin-type antibiotic that is effective against both gram-negative microorganisms and gram-positive microorganisms such as Escherichia…
(Encyclopedia) bacitracinbacitracinbăsˌĭtrāˈsĭn [key], antibiotic produced by a strain of the bacterial species Bacillus subtilis. It is widely used for topical therapy such as for skin and eye…
(Encyclopedia) weight, measure of the force of gravity on a body (see gravitation). Since the weights of different bodies at the same location are proportional to their masses, weight is often used…
