PERITHELIUM
\pˌɛɹɪθˈiːli͡əm], \pˌɛɹɪθˈiːliəm], \p_ˌɛ_ɹ_ɪ_θ_ˈiː_l_iə_m]\
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By Willam Alexander Newman Dorland
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The partial or complete sheath of a capillary,small artery, or vein, formed by the branched cells of the surrounding areolar or adenoid tissue, the branched cells being in intimate connection with the cells forming the proper wall of the vessel; also, one of those branched cells. [Gr.]
By Smith Ely Jelliffe
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.