down quark

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noun Physics.

the quark having electric charge −1/3 times the elementary charge, with strangeness, charm, and other quark quantum numbers equal to 0.

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Also called d quark.

Origin of down quark

First recorded in 1975–80

Words nearby down quark

Downpatrick, down payment, downpipe, downplay, downpour, down quark, downrange, downrate, downregulation, downrigger, downright

How to use down quark in a sentence

With at least one in every kind of element, it’s made up of two up quarks and a down quark that dance around each other in a tightly bound orbit maintained by exchanging gluons.
A Breakthrough in Measuring the Building Blocks of Nature - Facts So Romantic|Subodh Patil|January 8, 2021|Nautilus
Left-handed up and down quarks can transform into each other, via an interaction called the weak force.
A New Map of All the Particles and Forces|Natalie Wolchover, Samuel Velasco and Lucy Reading-Ikkanda|October 22, 2020|Quanta Magazine
Clad in a blue, striped button-down, a silver watch adorning his left wrist, Huckabee beams on the cover.
Huckabee 2016: Bend Over and Take It Like a Prisoner!|Olivia Nuzzi|January 8, 2015|DAILY BEAST
That article noted that the F-35 does not currently have the ability to down-link live video to ground troops,.
Pentagon Misfires in Stealth Jet Scandal|Dave Majumdar|January 8, 2015|DAILY BEAST

A grand juror in the Ferguson case is suing to be able to explain exactly what went down in the courtroom.
Politicians Only Love Journalists When They're Dead|Luke O’Neil|January 8, 2015|DAILY BEAST
The gunman then burst from the restaurant and fled down the street with the other man.
Shot Down During the NYPD Slowdown|Michael Daly|January 7, 2015|DAILY BEAST
My doctor insisted that once I filed this piece I lie down on my bed and not get out.
I Tried to Warn You About Sleazy Billionaire Jeffrey Epstein in 2003|Vicky Ward|January 7, 2015|DAILY BEAST
The bride elect rushes up to him, and so they both step down to the foot-lights.
Physiology of The Opera|John H. Swaby (AKA "Scrici")
I take the Extream Bells, and set down the six Changes on them thus.
Tintinnalogia, or, the Art of Ringing|Richard Duckworth and Fabian Stedman
His wife stood smiling and waving, the boys shouting, as he disappeared in the old rockaway down the sandy road.
The Awakening and Selected Short Stories|Kate Chopin
So he bore down on the solemn declaration that she stood face to face with a prison term for perjury.
The Bondboy|George W. (George Washington) Ogden
Do not the widow's tears run down the cheek, and her cry against him that causeth them to fall?
The Bible, Douay-Rheims Version|Various

Scientific definitions for down quark

down quark

[ doun ]

A quark with a charge of -1/3. Its mass is greater than that of the electron and the up quark, but smaller than that of all the other quarks. See Table at subatomic particle.