Definitions for tosca
tosca

WikipediaRate this definition:0.0 / 0 votes

1. tosca

   The Toxic Substances Control Act (TSCA) is a United States law, passed by the 94th United States Congress in 1976 and administered by the United States Environmental Protection Agency (EPA), that regulates chemicals not regulated by other U.S. federal statutes, including chemicals already in commerce and the introduction of new chemicals. When the TSCA was put into place, all existing chemicals were considered to be safe for use and subsequently grandfathered in. Its three main objectives are to assess and regulate new commercial chemicals before they enter the market, to regulate chemicals already existing in 1976 that posed an "unreasonable risk of injury to health or the environment", as for example PCBs, lead, mercury and radon, and to regulate these chemicals' distribution and use.Contrary to what the name implies, TSCA does not separate chemicals into categories of toxic and non-toxic. Rather it prohibits the manufacture or importation of chemicals that are not on the TSCA Inventory or subject to one of many exemptions. Chemicals listed on the TSCA inventory are referred to as "existing chemicals", while chemicals not listed are referred to as new chemicals. The TSCA defines the term "chemical substance" as "any organic or inorganic substance of a particular molecular identity, including any combination of these substances occurring in whole or in part as a result of a chemical reaction or occurring in nature, and any element or uncombined radical" although TSCA excludes chemicals regulated by other federal statutes from the definition of a chemical substance.Generally, manufacturers must submit premanufacturing notification to EPA prior to manufacturing or importing new chemicals for commerce. Exceptions include foods, food additives, drugs, cosmetics or devices regulated under the Federal Food, Drug, and Cosmetic Act, pesticides regulated by the Federal Insecticide, Fungicide, and Rodenticide Act, tobacco and tobacco products regulated by the Bureau of Alcohol, Tobacco, Firearms and Explosives, substances used only in small quantities for research and development under Section 5(h)(3), and radioactive materials and wastes regulated by the Nuclear Regulatory Commission. EPA reviews new chemical notifications and if it finds an "unreasonable risk of injury to health or the environment," it may regulate the substance from limiting uses or production volume to outright banning it. In 2016, the Frank R. Lautenberg Chemical Safety for the 21st Century Act was the first major overhaul in many years.

WikidataRate this definition:0.0 / 0 votes

1. Tosca

   Tosca is an opera in three acts by Giacomo Puccini to an Italian libretto by Luigi Illica and Giuseppe Giacosa. It premiered at the Teatro Costanzi in Rome on 14 January 1900. The work, based on Victorien Sardou's 1887 French-language dramatic play, La Tosca, is a melodramatic piece set in Rome in June 1800, with the Kingdom of Naples's control of Rome threatened by Napoleon's invasion of Italy. It contains depictions of torture, murder and suicide, as well as some of Puccini's best-known lyrical arias, and has inspired memorable performances from many of opera's leading singers. Puccini saw Sardou's play when it was touring Italy in 1889 and, after some vacillation, obtained the rights to turn the work into an opera in 1895. Turning the wordy French play into a succinct Italian opera took four years, during which the composer repeatedly argued with his librettists and publisher. Tosca premiered at a time of unrest in Rome, and its first performance was delayed for a day for fear of disturbances. Despite indifferent reviews from the critics, the opera was an immediate success with the public. Musically, Tosca is structured as a through-composed work, with arias, recitative, choruses and other elements musically woven into a seamless whole. Puccini used Wagnerian leitmotifs to identify characters, objects and ideas. While critics have frequently dismissed the opera as a facile melodrama with confusions of plot—musicologist Joseph Kerman famously called it a "shabby little shocker"—the power of its score and the inventiveness of its orchestration have been widely acknowledged. The dramatic force of Tosca and its characters continues to fascinate both performers and audiences, and the work remains one of the most frequently performed operas. Many recordings of the work have been issued, both of studio and live performances.

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1. tosca

   Song lyrics by tosca -- Explore a large variety of song lyrics performed by tosca on the Lyrics.com website.

Surnames Frequency by Census RecordsRate this definition:0.0 / 0 votes

1. TOSCA

   According to the U.S. Census Bureau, Tosca is ranked #73215 in terms of the most common surnames in America.
   
   The Tosca surname appeared 265 times in the 2010 census and if you were to sample 100,000 people in the United States, approximately 0 would have the surname Tosca.
   
   50.9% or 135 total occurrences were of Hispanic origin.
   43% or 114 total occurrences were White.
   3.7% or 10 total occurrences were Black.
   2.2% or 6 total occurrences were of two or more races.

How to pronounce tosca?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say tosca in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of tosca in Chaldean Numerology is: 9

2. Pythagorean Numerology

   The numerical value of tosca in Pythagorean Numerology is: 4

Examples of tosca in a Sentence

1. Berlin Zoo on Tuesday:

   Deaf, blind and disoriented, Tosca was found stumbling around in her cage on Monday, she lost her sense of smell. It was a pathetic sight. Veterinarians, animal protection officials and zoo officials came to a joint decision to put the elderly Tosca out of her misery.

Popularity rank by frequency of use

References

1. ^ Wikipedia
   https://en.wikipedia.org/wiki/Tosca
2. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=tosca
3. ^ Surnames Frequency by Census Records
   https://www.census.gov/topics/population/genealogy/data/2010_surnames.html