vapori-, vapor-, vapo-

To cause something; such as, a liquid, to go from a liquid state into a gaseous state through a semi-permeable membrane: "When anyone pervaporates a liquid, it involves a process that is used to separate liquids and cause them to evaporate."

The heating of a liquid within a dialyzing bag suspended over a hot plate: "The pervaporation of a liquid results in quick evaporation through the membrane; any colloids in solution remain within the bag while crystalloids (bodies that in solution can pass through a semipermeable membrane) diffuse out and crystallize on the outer surface of the bag (perstillation)."

"Colloids are two-phase systems in which one is uniformly dispersed in another as particles small enough so they cannot be filtered or will not settle out."

A substance suspended in the air, the temperature and pressure of which, are such that any compression of its volume at constant temperature causes it to condense to liquid at a rate sufficient to maintain a constant pressure.

A process used to remove salt from seawater, by evaporating it through a fine mesh filter that traps the brine particles so that the fluid can then be condensed into a relatively salt-free solution.

To inhale electronic cigarettes or e-cigarettes, by using a battery-powered vaporizer which simulates 'tobacco smoke' as it produces a vapor which consists primarily of the nicotine of cigarettes: There are those who claim that vaping in such fumes is safer because the contents only produces nicotine and not other elements that come from tobacco; however, isn't nicotine dangerous enough?

The moisture or form of gas that is produced by e-cigarette devices: "After many years of smoking cigarettes and cigars, Adam has become an advocate of inhaling vaper instead of being a regular smoker."

Someone who uses a battery-powered device that simulates tobacco smoke: "Since the mist that is produced by e-cigarettes is supposed to contain only nicotine and none of the other harmful chemicals (such as, tars), vaperers are being misled into believing that this activity has an advantage over regular smokers because it is cleaner."

"One medical dictionary says: 'Nicotine is one of the most toxic and addictive of all poisons.' "

1. A reference to something which is neither lively nor interesting but is dull and boring: Goldie sang a song with vapid or lifeless and unexciting lyrics.

The vapid discussion about politics showed no sign of intelligence or of imagination.

2. Lacking taste, flavor, or tang: The vapid tea simply tasted like water.
3. Etymology: originally used in English in a much more literal sense, describing beverages that lacked flavor; it comes from the Latin word vapidus, "having exhaled its vapor". © ALL rights are reserved.
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1. An object, a circumstance, an event, etc. which is weary, uninteresting, commonplace, and lifeless: The vapidity of the author's new book resulted in its being a complete failure.
2. Etymology: borrowed from obsolete French vapide, or directly from Latin vapidus, "flat, insipid"; literally, "that which has exhaled its vapor"; related to vappa, "stale wine", and perhaps to vapor, "to exhale".

Although the following cartoon refers to an adjective format, it is used here because it aids in understanding what the noun form means.

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Descriptive of being dull, boring, or uninteresting: Elva expressed vapidly sentimental concerns regarding her brother's loss of his job. This vapid image is here because it is easier to comprehend the meaning of vapidly (an adverb) even though the picture is demonstrating an adjective. © ALL rights are reserved.

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A person who inhales nicotine steam from an electric-cigarette device: "Markus is now a vapist who has changed from regular smoking to what is supposed to be a safer form of nicotine consumption."

1. A dispersion in the air of a substance that is a liquid or a solid in its normal state; such as, water.
2. A gas whose temperature is less than the critical temperature, so that it may be converted to a liquid or solid by compression at a constant temperature.

Another term for absolute humidity; that is, the mass of moisture in relation to the unit volume of space that it occupies.

The interruption of a flow of liquid with the formation of thin moisture, or gas bubbles, in a conduit; especially, an obstruction of this type in the flow of gasoline to the engine in a motor vehicle.

1. The pressure at which a liquid and its moisture particles are equal to each other at a given temperature.
2. The pressure exerted by mist, or clouds, in the atmosphere which are independent of any other gases or water particles.