strange quark

noun, Physics.

a quark having electric charge −1/3 times the elementary charge and strangeness −1; it is more massive than the up and down quarks.

Also called s quark.

Origin

1970-75

Examples from the web for strange quark

In the high-density environment inside a neutron star, however, scientists expect the strange quark to have an easier time of it.
strange quark-antiquark pairs are constantly bubbling up in the proton.

strange quark in Science

strange quark
A quark with an electric charge of -1/3 and a mass of 391 electron masses, greater than that of the up quark and down quark, but smaller than that of other quarks. The presence of a strange quark contributes strangeness of -1 to the physical system containing it, while a strange antiquark contributes strangeness of +1. See Table at subatomic particle.