THEORY OF VORTICES
\θˈi͡əɹi ɒv vˈɔːtɪsˌiːz], \θˈiəɹi ɒv vˈɔːtɪsˌiːz], \θ_ˈiə_ɹ_i_ ɒ_v v_ˈɔː_t_ɪ_s_ˌiː_z]\
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(Astron.) The hypothesis of Descartes, that the planets are carried round the sun by a vortex of a fine and subtile kind of matter, whose motion keeps up theirs. Though weighted with many difficulties, the theory was once very famous, and almost universally received.
By Henry Percy Smith
Word of the day
Dopamine Acetyltransferase
- An enzyme that catalyzes the of groups from acetyl-CoA to arylamines. They have wide specificity for aromatic amines, particularly serotonin, and can also catalyze acetyl transfer between arylamines without CoA. EC 2.3.1.5.