virtual
Noun pluralvirtuals (some meanings)
Pluralvirtuals (some meanings)
- 1Being something in effect or result, but not in real fact.
Like being the boss of a group in everything but name.
Although she held no official title, she was the virtual head of the household.
The new rules gave the manager virtual control over every hiring decision.
Similareffective
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- 2
- 3Done through a computer or the internet instead of in person.
Like meeting your friends in a video call instead of at their house.
The company held a virtual meeting with staff in six countries.
She took virtual classes from home all year.
Oppositein-person, face-to-face, physical
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- 4
- 5A computer-made version of a real sport, such as a simulated horse race you can bet on.
Like a video-game horse race that you can put money on.
He placed a small bet on the virtual and watched the race play out on screen.
Many betting shops show virtuals between the real matches.
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- 6In programming, able to be replaced by a new version in a related class.
Like a recipe step that each cook is allowed to do their own way.
The teacher showed how a virtual method can be changed in a child class.
Mark the function as virtual so other classes can replace it.
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- 7The copied or made-up version of something, instead of the real thing.
Like a photo of a place: it stands in for the real spot but isn't it.
In that book, the author argues the virtual can feel as real as anything we touch.
Each model is a virtual standing in for something that never physically existed.
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- 8In optics, describing an image or point that light only seems to come from.
Like your reflection in a mirror: it looks like it's behind the glass, but nothing is really there.
A flat mirror makes a virtual image that seems to sit behind the glass.
The lens formed a virtual image you could not catch on a screen.
Oppositereal
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- 9In physics, describing tiny particles that exist for only a very short time.
Like bubbles that appear and burst so fast you can barely see them.
A virtual particle pops in and out of existence almost instantly.
Empty space is full of virtual particles appearing and vanishing.
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- 10Describing a tiny state in physics that lasts only a moment and cannot be seen directly.
Like a spark that flashes and is gone before you can really look at it.
As it absorbs light, the atom passes briefly through a virtual state.
In this model, a virtual state lasts far too briefly for any instrument to detect it.
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- 11In programming, a function in a class that child classes can replace with their own version.
Like a recipe step a parent leaves blank so each child can fill it in their own way.
The programmer declared a virtual so that each subclass could supply its own version.
Each virtual in the base class can be redefined by the classes that inherit from it.
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- 12Describing an effect something would have in theory if things like friction were ignored.
Like guessing how fast a sled would slide on perfectly smooth ice with nothing to slow it.
Engineers calculated the virtual pressure the pipe would deliver if friction did not slow the water.
The virtual force is what you would measure if nothing wasted energy along the way.
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- 13Describing a tiny imagined movement in a machine that still obeys the system's limits.
Like pretending to nudge part of a machine just a little to see what would happen, without truly moving it.
Physics students imagine a virtual velocity to test whether the structure stays balanced.
By applying a virtual displacement, engineers can find the hidden forces without moving anything for real.
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- 14Able to bring about a result and to work effectively.
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- 15Able to act without any physical or measurable cause, and having unseen power.
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- 16Having power or effect that comes from its own natural qualities.
[H]is ſenſes flame / Flovv'd from his parts, vvith force ſo virtuall, / It fir'd vvith ſence things meere inſenſuall.
1598, George Chapman, “Third Sestyad”Here, virtuall means powerful, having strong natural force.Note
- 17Describes a plant or other thing that has a strong power to heal.
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- 18Full of virtue and having very good moral character.
The moſt in ſoule deiected; the moſt baſe, / And moſt vnſeruiceable weede, vnles / You by your heauenly Influence change his vilenes / Into a vertuall habit fit for vſe.
1607, Thomas Dekker, “The Whore of Babylon.”Here, vertuall means good and virtuous, having fine moral character.Similarvirtuous
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Practice
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Origin
This word came through Old French from Medieval Latin virtuālis, meaning having power to produce an effect. It goes back to Latin virtūs (virtue, manliness) and vir (man).