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Acid - Wikipedia
An acid is a molecule or ion capable of either donating a proton (ie hydrogen cation, H + ), known as a Brønsted–Lowry acid, or forming a covalent bond with an ...
en.wikipedia.org
en.wikipedia.org
Definition of acid - NCI Dictionary of Cancer Terms
A chemical that gives off hydrogen ions in water and forms salts by combining with certain metals. Acids have a sour taste and turn certain dyes red.
www.cancer.gov
www.cancer.gov
ACID Definition & Meaning - Merriam-Webster
1 ... a ... sour, sharp, or biting to the taste ... an acid flavor ... b ... sharp, biting, or sour in manner, disposition, or nature ... an acid individual.
www.merriam-webster.com
www.merriam-webster.com
acid
acid, a. and n. (ˈæsɪd) [a. mod.Fr. acide (Cotgr. 1611) or ad. L. acid-us adj. of state, f. acē-re to be sour (root ac- sharp).] A. adj. 1. a. Sour, tart, sharp to the taste; of the taste of vinegar.1626 Bacon Sylva vii. §672 It [sorrel] is a cold and acid herb. 1676 in Phil. Trans. XI. 614 These cr...
Oxford English Dictionary
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Acid | Definition, Examples, Types, Uses, & Facts - Britannica
Acid, any substance that in water solution tastes sour, changes the colour of certain indicators (eg, reddens blue litmus paper), reacts with some metals (eg, ...
www.britannica.com
www.britannica.com
Acid - an overview | ScienceDirect Topics
Acid is defined as a substance that can contribute to metabolic acidosis, commonly observed in post-operative patients when analyzing arterial blood gases (ABG) ...
www.sciencedirect.com
www.sciencedirect.com
acid
acid/ˈæsɪd; `æsɪd/ n1 [U, C] (chemistry 化) substance that contains hydrogen, which can be replaced by a metal to form a salt 酸(能被金属置换出氢而成为盐的物质) Vinegar contains acetic acid. 醋中含有醋酸. Some acids burn holes in wood. 有些酸能把木头烧成洞. Cf 参看 alkali.2 [C] any sour substance 酸味物质.3 [U] (sl 俚) = LSD.4 (idm 习语) th...
牛津英汉双解词典
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ACID | definition in the Cambridge English Dictionary
any of various usually liquid substances that can react with and sometimes dissolve other materials: acetic/hydrochloric/lactic acid.
dictionary.cambridge.org
dictionary.cambridge.org
What is Acid Rain? | US EPA
Acid rain, or acid deposition, is a broad term that includes any form of precipitation with acidic components, such as sulfuric or nitric acid that fall to the ...
www.epa.gov
www.epa.gov
What is an Acid in Chemistry?
Acids are solutions that are both corrosive and reactive, especially with metals. They react with bases to form salts in neutralisation ...
www.chemicals.co.uk
www.chemicals.co.uk
What Are Acids & Bases? | Chemistry Basics - YouTube
Acids and bases can be found all throughout your everyday life and are often times very useful… even in your own body! But what is it about ...
www.youtube.com
www.youtube.com
ACID
ACID,是指数据库管理系统(DBMS)在写入或更新资料的过程中,为保证交易是正确可靠的,所必须具备的四个特性:(atomicity,或称不可分割性)、一致性(consistency)、隔离性(isolation,又称独立性)、持久性(durability)。 这个过程被称为一个事务,具有ACID特性。ACID的概念在ISO/IEC 10026-1:1992文件的第四段内有所说明。
四大特性
原子性:一个事务(transaction)中的所有操作,或者全部完成,或者全部不完成,不会结束在中间某个环节。
wikipedia.org
zh.wikipedia.org
Hydroxic acid - definition of Hydroxic acid by The Free Dictionary
n. 1. a transparent, odorless, tasteless liquid, a compound of hydrogen and oxygen, H 2 O, freezing at 32°F or 0°C and boiling at 212°F or 100°C, that in a more or less impure state constitutes rain, oceans, lakes, rivers, etc. 2. a special form or variety of this liquid, as rain. 3.
www.thefreedictionary.com
lysergic acid diethylamide tartrate in Chinese - lysergic acid ...
lysergic acid diethylamide tartrate in Chinese : 《英文msh词典》Lysergic Acid Diethyl…. click for more detailed Chinese translation, meaning, pronunciation and example sentences.
eng.ichacha.net