1. Public celebration of the Eucharist in the Roman Catholic Church and some Protestant churches.
2. The sacrament of the Eucharist.
3. A musical setting of certain parts of the Mass; especially, the Kyrie, Gloria, Credo, Sanctus, and Agnus Dei.

From Ecclesiastical Latin missa, past participle of mittere, "to send" (away); so called from the words of dismissal at the end of the service: Ite, missa est, "Go, (the congregation) is dismissed" or "Go, it (the prayer) has been sent." The phrase in Latin has also been interpreted to mean: "Go, it is the dismissal" or "Go, dismissed."

To repeat, the phrase ite, missa est refers to the dismissal of the congregation at the end of the Mass with this literal translation: "Go, it has been sent on its way" or "Go, the mass is ended."

1. The mass of a moving charge whose kinetic energy appears to account for the discrepancy between the total field energy and the field energy of a purely static electric field.
2. The contribution to the mass of an object from its electric and magnetic field energy.

Hysteria in a group of people, usually closely associated in a school or workplace.

The inciting incident might be a rumor or an unaccustomed odor; such as, paint fumes in a workplace.

A type of secondary ion mass spectrometer (instrument used to disperse radiant energy or particles into a spectrum and measure properties such as wavelength, mass, energy, or index of refraction) in which primary ions are focused on a spot 1-2 micrometers in diameter, mass-charge separation of secondary ions is carried out by a double focusing mass spectrometer or spectrograph.

A magnified image of isotopic distributions on the sample surface is produced using synchronous scanning of the primary ion beam and an oscilloscope.

An instrument for microscopic chemical analysis, in which a beam of primary ions with an energy in the range 5-20 kilo-electron volts hit a small spot on the surface of a sample with high-energy particles, and positive and negative secondary ions sputtered from the surface are analyzed in a mass spectrometer.

1. A mass spectrometer in which the mass distribution of orbiting ions within a magnetic field is detected by bringing ion frequencies sequentially into resonance with applied radio frequencies.
2. A device for detecting and measuring the mass distribution of ions orbiting in an applied magnetic field, either by applying a constant radio-frequency signal and varying the magnetic field to bring ion frequencies equal to the applied radio frequency sequentially into resonance, or by rapidly varying the radio frequency and applying Fourier transform techniques (an operation that transforms one complex-valued function of a real variable into another one).

Fourier transform techniques as used in electronics, control systems engineering, and statistics, is a term used to describe the analysis of mathematical functions or signals with respect to frequency, rather than time.

An analytical instrument in which ions, produced from a sample, are separated by electric or magnetic fields according to their ratios of charge to mass.

A record is produced (mass spectrum) of the types of ion present and their relative amounts.

Forced movements of short duration in which the contents of the colon are moved from one section to another area: Mass peristalsis takes place three or four times each day.

A material used to absorb, store, and later release heat, and so retarding the temperature variation within a building space; for example, concrete, brick, masonry, mortar, rock, water, or any other such materials with high heat capacities.

In astronomy, the mass of a star cluster or cluster of galaxies that is derived from the mean motions.