BREWSTER'S PRISMATIC STEREOSCOPE
\bɹˈuːstəz pɹɪsmˈatɪk stˈɛɹɪˌə͡ʊskə͡ʊp], \bɹˈuːstəz pɹɪsmˈatɪk stˈɛɹɪˌəʊskəʊp], \b_ɹ_ˈuː_s_t_ə_z p_ɹ_ɪ_s_m_ˈa_t_ɪ_k s_t_ˈɛ_ɹ_ɪ__ˌəʊ_s_k_əʊ_p]\
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A s. consisting of two prisms with convex surfaces, having their refracting angles turned inward, one before each eye, though which the person being examined must look with parallel visual lines. In the median plane between the two prisms is placed a blackened screen, which reaches nearly to the points of fixation. The eyes are correctly accommodated by the convexity of the prismatic surface, and the images of the two objects of fixation are fused into one by the action of the prisms.
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See Brewster.
By Smith Ely Jelliffe
Word of the day
Platidiam
- An inorganic water-soluble platinum complex. After undergoing hydrolysis, it reacts DNA produce both intra interstrand crosslinks. These crosslinks appear to impair replication and transcription of DNA. The cytotoxicity cisplatin correlates with cellular arrest in G2 phase cell cycle.
Nearby Words
- brewing
- brewis
- brewster
- brewster sessions
- brewster's law
- Brewster's prismatic stereoscope
- brewster, william, elder
- brewsterite
- brewstoline
- breyonec
- brezhnev