Optically active
Optically Op"tic*al*ly, adv. 1. By optics or sight. [1913 Webster]

2. With reference to optics. [1913 Webster]

{Optically active}, {Optically inactive} (Chem. Physics), terms used of certain isomeric substances which, while identical with each other in other respects, differ in this, viz., that they do or do not produce right-handed or left-handed circular polarization of light. See {optical activity}.

{Optically positive}, {Optically negative}. See under {Refraction}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • optically active — adj capable of rotating the plane of vibration of polarized light to the right or left: either dextrorotatory or levorotatory used of compounds, molecules, or atoms * * * capable of rotating the plane of polarization of a light wave …   Medical dictionary

  • optically active — optical activity optical activity n. (Chem.) the ability of a chemical compound to rotate the plane of plane polarized light. This is found only in chemicals whose molecular structure does not have a plane of symmetry, and is common in… …   The Collaborative International Dictionary of English

  • optically active — adjective : capable of rotating the plane of polarization of light to the right or left : either dextrorotatory or levorotatory optically active substances may be divided into two classes depending upon whether activity is due to crystal… …   Useful english dictionary

  • optically active — adjective Date: 1875 capable of rotating the plane of vibration of polarized light to the right or left used of compounds, molecules, or atoms …   New Collegiate Dictionary

  • optically active — adjective (of a crystal or compound) exhibiting optical activity …   Wiktionary

  • optically active — /ɒptɪkəli ˈæktɪv/ (say optikuhlee aktiv) adjective having optical activity …   Australian English dictionary

  • Optically active additive — (OAA) is an organic or inorganic material which, when added to a coating, makes that coating react to ultra violet light. This effect enables quick, non invasive inspection of very large coated areas during the application process allowing the… …   Wikipedia

  • optically active substance — optiškai aktyvi medžiaga statusas T sritis Standartizacija ir metrologija apibrėžtis Medžiaga, sukanti per ją sklindančios šviesos poliarizacijos plokštumą. atitikmenys: angl. optically active substance vok. optisch aktive Substanz, f rus.… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • optically active substance — optiškai aktyvi medžiaga statusas T sritis Standartizacija ir metrologija apibrėžtis Natūraliu optiniu aktyvumu pasižyminti medžiaga, pvz., sukanti per ją sklindančios šviesos poliarizacijos plokštumą. atitikmenys: angl. optically active… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • optically active substance — optiškai aktyvi medžiaga statusas T sritis fizika atitikmenys: angl. optically active substance vok. optisch aktive Substanz, f rus. оптически активное вещество, n pranc. matériau optiquement actif, m; substance d’activité optique, f; substance… …   Fizikos terminų žodynas

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