PERIHELION
\pˌɛɹɪhˈɛli͡ən], \pˌɛɹɪhˈɛliən], \p_ˌɛ_ɹ_ɪ_h_ˈɛ_l_iə_n]\
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periapsis in solar orbit; the point in the orbit of a planet or comet where it is nearest to the sun
By Princeton University
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periapsis in solar orbit; the point in the orbit of a planet or comet where it is nearest to the sun
By DataStellar Co., Ltd
By William Dodge Lewis, Edgar Arthur Singer
By William Hand Browne, Samuel Stehman Haldeman
By James Champlin Fernald
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.