molecular weight

The sum of the atomic weights of all the atoms in a molecule. Also called relative molecular mass.

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.

molecular weight

(Chemistry) the former name for relative molecular mass

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

molec′ular weight′

the average weight of a molecule of an element or compound measured in units based on 1/12 the weight of the carbon-12 atom; the sum of the atomic weights of all the atoms in a molecule. Abbr.: mol. wt.

[1875–80]

molecular weight

The sum of the atomic weights of the atoms contained in a molecule. For example, since the atomic weight of hydrogen is 1 and the atomic weight of oxygen is 16, the molecular weight of water (H₂O) is 1 + 1 + 16, or 18.

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.

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun

molecular weight - (chemistry) the sum of the relative atomic masses of the constituent atoms of a molecule

relative molecular mass

mass - the property of a body that causes it to have weight in a gravitational field

chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions

Translations

peso molecolare

Mentioned in

References in periodicals archive

The global low molecular weight heparin market size was valued at US$ 2,882.6 Mn in 2017 and is expected to witness a CAGR of 6.7% during the forecast period (2018 - 2026).

Low Molecular Weight Heparin Market - NextGen of Advanced Biotechnology to Bring up New Path / Pfizer, Inc., LEO Pharma A/S, Sanofi S.A., Teva Pharmaceutical Industries Ltd., Abbott Laboratories

[ClickPress, Fri May 17 2019] Global Molecular Weight MarkerMarket is expected to grow at a CAGR of 11% to reach US$ 876.3 million in 2024.

Global Molecular Weight MarkerMarket

Identification and determination of molecular weight of allergenic bands by comparison with Allergen database: An allergen database (www.allergen.org) contains approved and officially recognized allergens.

EXTRACT PREPARATION OF MAJOR FOOD ALLERGENS OF PAKISTAN AND THEIR PROTEIN PROFILING

The Epolene product line is divided into three major classes of low molecular weight polymers: N types, or normal (nonemulsifiable); C types, or coating; and E types, or emulsifiable.

Epolene polymers for the rubber industry

Unfractionated heparin versus low molecular weight heparin for avoiding heparin-induced thrombocytopenia in postoperative patients.

Comparison of modified versus conventional injection techniques of low-molecular-weight heparin in elderly

Toward this end, studies on the extent to which polymers' physical properties, such as [T.sub.g], molecular weight, and chemical structure, influence the process of interface formation and interfacial thickness are necessary.

Confocal Raman Spectroscopy Studies on the Mutual Diffusion Behavior at the Interface Between Two Different Polyesters

The manufacturers of plastics raw materials pay close attention to the molecular weight of the products they produce, and they capture this with a measurement of properties such as melt flow rate and intrinsic viscosity.

PART 1: A Processor's Most Important Job: Many processors don't realize that preserving material characteristics is crucial to product success and failure. The focus here is on molecular weight

Although the estimated elimination half-life is long (about 11 days with a range of 6-24 days), the high molecular weight (about 154,000) should limit fetal exposure, at least in the first half of pregnancy The drug should be avoided in pregnancy, however, based on the animal data, the mechanism of action, and its combination with doxorubicin.

Novel drugs approved in 2016

In addition, the prices of GUR ultra-high molecular weight polyethylene (UHMW-PE) and GHR high molecular weight polyethylene (VHMW-PE) will increase by EUR0.25/kg in Europe and Middle East, USD0.1/kg in Asia and USD0.1/kg in the Americas, respectively.

Celanese reports launch of higher price list for engineered materials in Europe, ME, Asia and the Americas

Through the polymerization process, materials of relatively high molecular weight, macromolecules, are produced.

Plastics--it's all about molecular structure

The cholesterol-linoleic acid emulsion, consisting of 0.1% cholesterol, 0.05% linoleic acid and 0.1% of commercial polysorbate 20, was mixed with 1% or 2% low molecular and high molecular weight chitosan samples as treatments.

Low molecular weight chitosan offers greater antioxidant activity