PROSTHAPHAERESIS
\pɹˌɒsθɐfe͡əɹˈiːsɪs], \pɹˌɒsθɐfeəɹˈiːsɪs], \p_ɹ_ˌɒ_s_θ_ɐ_f_eə_ɹ_ˈiː_s_ɪ_s]\
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[A word made up of the Gr.] (Astron.) A term used by old astronomical writers to signify the difference between the true and mean motion, or the true and mean place of a planet, or the quantity which must be taken from or added to the mean anomaly in order to get the true anomaly.
By Henry Percy Smith
Word of the day
SQ10,643
- A serotonin antagonist with limited antihistaminic, anticholinergic, and immunosuppressive activity.