fluct-, flucti-, -flux, flu-, flum-, -fluent, -fluence

(Latin: flow, flowing; moving in a continuous and smooth way; wave, moving back and forth)

influenza pneumonia
An inflammation of the lungs associated with influenza infection.
influenza virus
A genus of viruses of the family Orthomyxoviridae which includes the influenza types A, B, and C; causing sporadic and epidemic influenza and pneumonia in humans, pigs, horses, and birds, with transmission by aerosols, by water, or by direct contact.
influenza, flu
1. An illness caused by viruses that infect the respiratory tract. These viruses are divided into three types, designated A, B, and C.

Symptoms of influenza include fever, appetite loss, an achy feeling throughout the body, and weakness.

Most people who get influenza recover completely in one to two weeks, but some people develop serious and potentially life-threatening medical complications; such as, pneumonia.

2. An acute, infectious, often epidemic respiratory disease in which the inhaled virus attacks epithelial cells (covering of internal and external surfaces of cells), causing fever, headache, muscle pain, dry cough, fatigue, and physical exhaustion.
3. Etymology: from about 1743, borrowed during an outbreak of the disease in Europe, from Italian influenza, "influenza, epidemic"; originally, "visitation, influence (of the stars)," from Medieval Latin influentia.
influx (s) (noun), influxes (pl)
1. A sudden arrival of a large number of people or things: There was a great influx of tourists into Patricia's city during the Christmas holiday.
2. An inflow or a flowing in; especially, of a stream or river; the mouth of a stream or river: After the downpour of rain within one day, there was an influx of water in the creek next to David's house causing it to overflow drastically.
3. Etymology: from Late Latin influxus, "a flowing in", from influere, "to flow in".

Originally a reference to rivers, air, light, spiritual light, etc.; and then applied to people started in about 1652.

A flowing of many things.
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irradiance, radiant flux density
1. A radiometric term for the rate at which radiant energy is transferred across a unit area of a surface, commonly measured in watts per square meter.
2. A radiometric term for the rate at which radiant energy in a radiation field is transferred across a unit area of a surface (real or imaginary) in a hemisphere of directions.

In general, irradiance depends on the orientation of a surface. The radiant energy may be confined to a narrow range of frequencies (spectral or monochromatic irradiance which is characterized by a single frequency) or integrated over a broad range of frequencies.

Knowledge: People and Their Influences
Influences on humanity from the past and in the present.
luminous flux (s) (noun) (usually not plural)
The rate of flow of radiant energy, expressed by brightness that is emitted in a unit of solid angles by a uniform point source with intensities of one candela or the base unit of beaming intensity or the power emitted by a source of illumination: Dr. Young and the scientists measured the luminous flux using the latest equipment designed to indicate in lumen the rate or speed of light transmission.
magnetic fluid
A fluid composed of solid magnetic particles of subdomain size colloidally dispersed in a liquid carrier; used in inertial dampers, fluid-cooled loudspeakers, and ink-jet printing.
mellifluous (adjective), more mellifluous, most mellifluous
1. Referring to something that is pleasant and soothing to listen to and sweet or rich in tone: Shirley made a mellifluous speech with her mellifluous voice at the graduating ceremony of her high school.
2. Etymology: from about 1432, which came from Late Latin mellifluus, "flowing with (or as if with) honey"; from Latin mel, mellis, "honey" + -fluus, "flowing"; from fluere, "to flow".
Words and sounds that render honeyed expressions.
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A verbal presentation that flows smoothly and pleasantly .
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mellifluously (adverb), more mellifluously, most mellifluously
Characterized by having a voice that is sweet sounding and smoothly flowing: Henry sang mellifluously to his audience which was pleasing to their ears.
menstrual flux
The blood and fluid of menstruation.
Flowing as with honey; smooth; mellifluous or sweet sounding.
noci-influence (s) (noun), noci-influences (pl)
Injurious or traumatic effect or influence: In her medical book, Alice read about a noci-influence that could be anything that had a damaging effect, or the result or outcome itself.