Grice on "Vacuous Names" -- and The Naming of Quarks

I'm NOT saying 'quark' is a vacuous name -- but consider this from wiki, 'quark':

"The most common baryons are
the proton and the neutron, the
building blocks of the atomic nucleus.[13] A
great number of hadrons are known (see
list of baryons and list of mesons), most of
them differentiated by their quark content
and the properties these constituent quarks
confer."

And next comest the intriguing (sort of):

"The existence of "exotic" hadrons with
more valence quarks, such as tetraquarks
(qqqq) and pentaquarks (qqqqq), has been
conjectured[14] but not proven.[nb 2][14][15]"

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Consider Herodotus: "At this point we can only conjecture the existence of a flying stallion that Hesiod called "Pegasus" -- but not prove it."