Molecular Weight: The average mass of a molecule, calculated by summing the atomic weights of atoms in the molecular formula. Note that the words mass and weight are often used interchangeably in chemistry.

 

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Molecular Weight: The average mass of a molecule, calculated by summing the atomic weights of atoms in the molecular formula. Note that the words mass and weight are often used interchangeably in chemistry.

Thumb Weight: Method of drilling the ball so that the thumbhole is closer to the label than are the finger holes; it is considered a negative weight; see finger weight.

Swing Weight: The relative weight of a clubhead's leverage (usually measured on a scale with a 12 or 14-inch fulcrum), technically - moment of inertia, or the tendency of a body to resist angular accelera . . . View Full Definition

Top Weight: Drilling of a ball so that there is more weight above the label than there is below; it is considered a positive weight. See bottom weight.

Underweighted: When you own less of a security, an asset class, or a subclass than your target asset allocation calls for, you are said to be underweighted in that security, asset class, or subclass. For e . . . View Full Definition

Unimolecular Reaction: A reaction that involves isomerization or decomposition of a single molecule.

Price-Weighted Index: An index giving a greater influence to higher-valued stocks by weighting all component stocks by their price.

Perimeter-Weighted: (also 'cavity back, cavity-back') a style of club head where the mass is distributed more toward the perimeter (outside edges) of the club head in order to increase the effective size of the . . . View Full Definition

Negative Weight: Weight on a ball that tends to hold back the hook and/or to get the ball into a roll earlier; bottom weight, negative side weight and thumb weight are considered negative weights. These are . . . View Full Definition

Molecular Sieve: A material that contains many small cavities interconnected with pores of precisely uniform size. Zeolites are an example. Molecular sieves adsorb molecules that are small enough to pass thr . . . View Full Definition