Chemistry is the scientific study of the properties and behavior of matter. It is a natural science that covers the elements that make up matter to the compounds composed of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during a reaction with other substances.
The word paper is etymologically derived from Latin papyrus, which comes from the Greek πᾰ́πῡρος (pápūros), the word for the Cyperus papyrus plant. Papyrus is a thick, paper-like material produced from the pith of the Cyperus papyrus plant, which was used in ancient Egypt and other Mediterranean cultures for writing before the introduction of paper.
A dictionary is a listing of lexemes from the lexicon of one or more specific languages, often arranged alphabetically (or by radical and stroke for ideographic languages), which may include information on definitions, usage, etymologies, pronunciations, translation, etc. It is a lexicographical reference that shows inter-relationships among the data.
John Locke FRS (/ l ɒ k /; 29 August 1632 – 28 October 1704) was an English philosopher and physician, widely regarded as one of the most influential of Enlightenment thinkers and commonly known as the "father of liberalism".
The Online Etymology Dictionary claims the semantic extension whereby "career" came to mean "course of one's public or professional life" appears from 1803. It is used in dozens of books published in the year 1800, in reference to Goethe 's "literary career,"  other biographical figures' "business career" and "professional career," so the ...
Human rights are moral principles or norms for certain standards of human behaviour and are regularly protected in municipal and international law. [citation not found] They are commonly understood as inalienable, fundamental rights "to which a person is inherently entitled simply because she or he is a human being" and which are "inherent in all human beings", regardless of their age, ethnic ...
A Dictionary of Slang, Jargon & Cant, Albert Barrère and Charles Godfrey Leland (1889 edition, full text, at Wikimedia Commons). The Online Slang Dictionary – American and English terms, features other statistical information. SlangLang – Popular slang words with their meaning, origin and spread