(Encyclopedia) chloramphenicolchloramphenicolklōrˌămfĕnˈəkŏlˌ [key], antibiotic effective against a wide range of gram-negative and gram-positive bacteria (see Gram's stain). It was originally…
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) 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) 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) lincomycinlincomycinlĭngˌkōmīˈsĭn [key], antibiotic isolated from bacteria of the genus Streptomyces. Similar in activity to erythromycin, it is effective against most gram-positive…
Why Do We Need Chemistry?ChemistryWhy Study Chemistry?Why Do We Need Chemistry?What Have I Gotten Myself Into?This Stuff Is Really Fun!Who Invented Chemistry?Succeeding Where Others Have Failed "…
(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…
