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mass US English

A coherent, typically large body of matter with no definite shape

Mass US English

The Christian Eucharist or Holy Communion, especially in the Roman Catholic Church

Mass. US English

Massachusetts

the mass of in mass US English

The majority of

air mass US English

A body of air with horizontally uniform temperature, humidity, and pressure

rest mass US English

The mass of a body when at rest

folk mass US English

A mass in which folk music is used instead of traditional liturgical music

High Mass US English

(In the Roman Catholic Church) formerly, a mass with full ceremonial, including music and incense and typically having the assistance of a deacon and subdeacon

Mass card US English

(In the Roman Catholic Church) a card sent to the family of someone who has died, stating that the sender has arranged for a Mass to be said in memory of the deceased

mass noun US English

A noun denoting something that cannot be counted (e.g., a substance or quality), in English usually a noun that lacks a plural in ordinary usage and is not used with the indefinite article, e.g., luggage, china, happiness

Low Mass US English

(In the Roman Catholic Church) formerly, a Mass with no music and a minimum of ceremony

atomic mass US English

The mass of an atom of a chemical element expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes

black mass US English

A travesty of the Roman Catholic Mass in worship of Satan

solar mass US English

The mass of the sun used as a unit of mass, equal to 1.989 × 1030 kg

Solemn Mass US English

Another term for High Mass.

water mass US English

A large body of seawater that is distinguishable especially by its characteristic temperature and salinity range

votive Mass US English

(In the Roman Catholic Church) a Mass celebrated for a special purpose or occasion

mass defect US English

The difference between the mass of an isotope and its mass number

mass energy US English

Mass and energy regarded as interconvertible manifestations of the same phenomenon, according to the laws of relativity

mass market US English

The market for goods that are produced in large quantities

mass media US English

The media

mass number US English

The total number of protons and neutrons in a nucleus

critical mass US English

The minimum amount of fissile material needed to maintain a nuclear chain reaction

mass-produce US English

Produce large quantities of (a standardized article) by an automated mechanical process

mass spectrum US English

A distribution of ions shown by the use of a mass spectrograph or mass spectrometer

mass transit US English

Public transportation, especially in an urban area

midnight Mass US English

A mass celebrated at or shortly before midnight, especially on Christmas Eve

nuptial mass US English

(In the Roman Catholic Church) a mass celebrated as part of a wedding ceremony

pontifical Mass US English

(In the Roman Catholic Church) a High Mass celebrated by a cardinal or bishop

Tridentine mass US English

The Latin Eucharistic liturgy used by the Roman Catholic Church from 1570 to 1964

in the mass US English

As a whole

center of mass US English

A point representing the mean position of the matter in a body or system

be a mass of US English

Be completely covered with

mass communication US English

The imparting or exchanging of information on a large scale to a wide range of people

mass observation US English

The study and recording of the social habits and opinions of ordinary people

mass spectrograph US English

A mass spectrometer in which the particles are detected photographically

mass spectrometer US English

An apparatus for separating isotopes, molecules, and molecular fragments according to mass. The sample is vaporized and ionized, and the ions are accelerated in an electric field and deflected by a magnetic field into a curved trajectory that gives a distinctive mass spectrum

atomic mass unit US English

A unit of mass used to express atomic and molecular weights, equal to one-twelfth of the mass of an atom of carbon-12. It is equal to approximately 1.66 x 10-27 kg

body mass index US English

A weight-to-height ratio, calculated by dividing one’s weight in kilograms by the square of one’s height in meters and used as an indicator of obesity and underweight

relative atomic mass US English

Another term for atomic mass.

conservation of mass US English

A principle stating that mass cannot be created or destroyed

law of mass action US English

The principle that the rate of a chemical reaction is proportional to the masses of the reacting substances

relative molecular mass US English

The ratio of the average mass of one molecule of an element or compound to one twelfth of the mass of an atom of carbon-12

weapon of mass destruction US English

A chemical, biological or radioactive weapon capable of causing widespread death and destruction

be a mass of in mass US English

Be completely covered with

landmass US English

A continent or other large body of land

land mass in landmass US English

A continent or other large body of land

Black Mass in black mass US English

A travesty of the Roman Catholic Mass in worship of Satan

requiem US English

(Especially in the Roman Catholic Church) a Mass for the repose of the souls of the dead


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