reactant

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re·ac·tant

(rē-ăk′tənt)

A substance that is altered or incorporated into another substance in a chemical reaction, especially a directly reacting substance present at the initiation of the reaction.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

reactant

(rɪˈæktənt)

(Chemistry) a substance that participates in a chemical reaction, esp a substance that is present at the start of the reaction. Compare product⁴

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

re•ac•tant

(riˈæk tənt)

n.

1. a person or thing that reacts.

2. any substance that undergoes a chemical change in a given reaction.

[1925–30]

re·ac·tant

(rē-ăk′tənt)

A substance participating in a chemical reaction, especially one present at the start of the reaction.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

reactant

A substance present at the start of chemical reaction which takes part in the reaction.

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Noun

reactant - a chemical substance that is present at the start of a chemical reaction

chemical, chemical substance - material produced by or used in a reaction involving changes in atoms or molecules

Translations

reaktant

References in periodicals archive ?

The gas flow velocity, the reactant gas concentration, and the performance in the fuel cell have been examined.

The effects of the PEM fuel cell performance with the waved flow channels

[[R].sub.i] is the reactant i concentration for indoor air,

A new scale for representing the level of reaction in indoor air as affected by ventilation and source

A reactant causing an exothermic chemical reaction to run is fed into the reactor to control the developing heat.

Arrhenius equation parameters identification from temperature profiles

These chemicals interact with the dipstick reactant pads to produce specific color changes that mimic actual normal and/ or abnormal urine samples.

Control for urine dipsticks/strip readers

Next comes the interior of the structure with No Burn Plus (a Class-A intumescing fire reactant) and No Burn Plus Mih (a dual-action product that serves as a fire reactant and a toxic black mold growth inhibitor), which are used as primers or paints.

Keep building fires from spreading with no burn

To cover a broad range of applications, the current MRT program consists of two reactors; the Microfluidics Mixer Reactor (MMR) for very fast reactions, and a coaxial feed reactor (Co-Reactor) that introduces the multiple reactant streams coaxially and allows the predetermined residence time for slower reactions.

Nanosuspension processing for the delivery of non-soluble drugs: the key to unlocking new drug formulations?

Air-bubbling was highly effective to prevent the polymerization of both the product and the reactant during the reactive distillation operation.

Esterification of acrylic acid with 1,4-butanediol in a batch distillation column reactor over Amberlyst 15 catalyst

People who were more reactant responded more strongly to the subliminal cues and showed greater variation in their performance than individuals who were less reactant.

Why we ignore nagging spouse

(Gaithersburg, MD) has patented a method for increasing the rate of chemical reactions involving the conversion of at least one reactant to at least one product involves contacting the reactant with an appropriate monoclonal antibody under conditions permitting the formation of a complex between the antibody and the reactant.

Wellstat BioCatalysis obtains United States patent

recently received a US patent titled "Closed Liquid Feed Fuel Cell Systems and Reactant Supply and Effluent Storage Cartridges Adapted for Use with the Same." The patent will help Neah in fuel-cell development using the company's silicon-based design.

Neah secures fuel cell patent

Urea is a common chemical reactant and precursor used in the production of other chemicals and materials, including fertilizers, resins, plastics, and paper.

Control valve

Here they exist in an incarnation called "nanohorns": One end of these minute carbon constructs is splayed out like a cornet, making it ideal for absorbing reactant gases (see www.nec.co.jp/press/ja/0108/3002.html).