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81ʾIʿrab — ʾIʿrāb (إﻋﺮﺍﺏ IPA: [ʔiʕraːb]) is an Arabic term for the system of nominal and adjectival suffixes of Classical Arabic. These suffixes are written in fully vocalized Arabic texts, notably the Qurʾān or texts written for children or Arabic… …
82Academic dress of universities in Queensland, Australia — There are a number of universities in Queensland, Australia, all with distinct academic dress.University of QueenslandThe University of Queensland generally follows the Cambridge pattern for its Academic regalia, in terms of the pattern of its… …
83Boolean algebra — This article discusses the subject referred to as Boolean algebra. For the mathematical objects, see Boolean algebra (structure). Boolean algebra, as developed in 1854 by George Boole in his book An Investigation of the Laws of Thought,[1] is a… …
84Matrix (mathematics) — Specific elements of a matrix are often denoted by a variable with two subscripts. For instance, a2,1 represents the element at the second row and first column of a matrix A. In mathematics, a matrix (plural matrices, or less commonly matrixes)… …
85tennis — /ten is/, n. a game played on a rectangular court by two players or two pairs of players equipped with rackets, in which a ball is driven back and forth over a low net that divides the court in half. Cf. lawn tennis. See illus. under racket2.… …
86acid–base reaction — ▪ chemistry Introduction a type of chemical process typified by the exchange of one or more hydrogen ions, H+, between species that may be neutral (molecules, such as water, H2O; or acetic acid, CH3CO2H) or electrically charged (ions, such… …
87organosulfur compound — ▪ chemical compound Introduction also spelled organosulphur compound , also called organic sulfur compound a subclass of organic substances that contain sulfur and that are known for their varied occurrence and unusual properties. They are… …
88Chu–Han Contention — Chu Han Contention Date 206–202 BC Location China Result Han victory Belligerents …
89List of music recording certifications — A gold record of The Beatles compilation album, Hey Jude The global music industry typically awards recordings with certification awards based on the total units sold, or shipped to the retailers. These awards and their requirements are defined… …
90Occidental language — Not to be confused with Interlingua or Occitan. Occidental Interlingue Created by Edgar de Wahl (1922) Setting and usage International auxiliary language Category (purpose) …
