n. chemical study of actinism; photo-chemistry.

Dictionary of difficult words. 2015.

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  • Actino-chemistry — Ac ti*no chem is*try, n. Chemistry in its relations to actinism. Draper. [1913 Webster] …   The Collaborative International Dictionary of English

  • actino-chemistry — …   Useful english dictionary

  • actino- — 1. Chemistry a word element used in compounds relating to actinism or actinic activity, as in actinotherapy. 2. Zoology a word element used in compounds relating to radiate structures, as in actinoid. Also, actin . {Greek aktīno , combining form… …  

  • actinochemistry — |aktə(ˌ)nōˈ noun ( es) Etymology: actin + chemistry : chemistry in its relations to actinism : photochemistry * * * actinochemical /ak tin oh kem i keuhl, ak teuh noh /, adj. /ak tin oh kem euh stree, ak teuh noh /, n. the branch of chemistry… …   Useful english dictionary

  • Actinism — is a property of radiation (particularly solar radiation) that leads to the production of photochemical effects. Actinism is derived from Greek with the meaning a radiant force . The word actinism seems to be used particularly in terms of imaging …   Wikipedia

  • actinochemistry — actinochemical /ak tin oh kem i keuhl, ak teuh noh /, adj. /ak tin oh kem euh stree, ak teuh noh /, n. the branch of chemistry dealing with actinism; photochemistry. [1835 45; ACTINO + CHEMISTRY] * * * …   Universalium

  • actinochemistry — ac·ti·no·chem·is·try kem ə strē n, pl tries chemistry in its relations to actinism: PHOTOCHEMISTRY * * * ac·ti·no·chem·is·try (ak″tĭ no kemґis tre) [actino + chemistry] photochemistry …   Medical dictionary

  • Isotopes of uranium — Uranium (U) is a naturally occurring element with no stable isotopes. In other words, all uranium is radioactive and hence vanishing by radioactive decay, yet it is also found in great quantity in the earth s crust. The natural isotopes are… …   Wikipedia

  • Uranium — (pronEng|jʊˈreɪniəm) is a silvery gray metallic chemical element in the actinide series of the periodic table that has the symbol U and atomic number 92. It has 92 protons and 92 electrons, 6 of them valence electrons. It can have between 141 and …   Wikipedia

  • actinometer — actinometric /ak tin oh me trik, ak teuh noh /, actinometrical, adj. actinometry, n. /ak teuh nom i teuhr/, n. a device for measuring intensity of radiation, esp. that of the sun. Cf. actinograph. [1825 35; ACTINO + METER] * * * ▪ chemistry    …   Universalium

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