proton
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proton
- /ˈpɹəʊ.tɒn/ UK
- /ˈpɹoʊ.tɑn/ US
Rhymes with (Received Pronunciation) -əʊtɒn, (US) -oʊtɑn
Where it comes from
Etymology tree
Proto-Indo-European *per-der.?
Proto-Indo-European *per-der.?
Proto-Indo-European *pér
Proto-Indo-European *-o
Proto-Indo-European *próder.
Ancient Greek πρό (pró)
Ancient Greek -ᾰτος (-ătos)
Ancient Greek πρῶτον (prôton)lbor.
English proton
Learned borrowing from Ancient Greek πρῶτον (prôton), neuter of πρῶτος (prôtos, “first”).
(physics): Coined by New Zealand-British scientist Ernest Rutherford in 1920, in analogy with electron (1891), and with an additional intention of honoring English chemist William Prout. Analyzable as proto- + -on
(anatomy): A translation of German Anlage (“fundamental thing”) based on Aristotle’s phrase ἡ πρώτη οὐσία τὸ πρῶτον (hē prṓtē ousía tò prôton).
noun protons
- A positively charged subatomic particle forming part of the nucleus of an atom and determining the atomic number of an element, composed of two up quarks and a down quark. The dance of the electrons about the prota, each electron and each proton consisting of a series of waves occupying the whole of the limited universe and obeying the laws of nature as they pass, is known to all.
- The atomic nucleus of protium (hydrogen-1)
- Synonym of primordium. It is a well authenticated fact that, in the case of section of a peripheral nerve, the nuclei of the sheath of Schwann pass to the centre of the lumen and form the protoplasmic prota of the segments of the new nerve[…]. From studies of the development of the olfactory organs in reptiles, as reporte
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