(n) English physicist (son of Joseph John Thomson) who was a co-discoverer of the diffraction of electrons by crystals (1892-1975), Syn.Sir George Paget Thomson, George Paget Thomson
(n) English physicist who experimented with the conduction of electricity through gases and who discovered the electron and determined its charge and mass (1856-1940), Syn.Joseph John Thomson, Sir Joseph John Thomson
n. [ Named after Dr. J. Thomsen of Copenhagen. See -lite. ] (Min.) A fluoride of aluminium, calcium, and sodium occurring with the cryolite of Greenland. [ 1913 Webster ]
[ From Thomsen, a physician of Sleswick. ] (Med.) An affection apparently congenital, consisting in tonic contraction and stiffness of the voluntary muscles occurring after a period of muscular inaction. [ 1913 Webster ]
n. (Med.) An empirical system which assumes that the human body is composed of four elements, earth, air, fire, and water, and that vegetable medicines alone should be used; -- from the founder, Dr. Samuel Thomson, of Massachusetts. [ 1913 Webster ]
n. [ From R. D. Thomson, of Glasgow. ] (Min.) A zeolitic mineral, occurring generally in masses of a radiated structure. It is a hydrous silicate of aluminia, lime, and soda. Called also mesole, and comptonite. [ 1913 Webster ]
. [ After Elihu Thomson, American inventor. ] A process of electric welding in which heat is developed by a large current passing through the metal. [ Webster 1913 Suppl. ]
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