dictionary help| protons | medical dictionary |
Stable elementary particles having the smallest known positive charge, found in the nuclei of all elements. The proton mass is less than that of a neutron. A proton is the nucleus of the light hydrogen atom, i.e., the hydrogen ion.
(12 Dec 1998)
protonophore, protonotary, proton pump, proton pump inhibitor < Prev | Next > proto-oncogene, proto-oncogene protein p21(ras)
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