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 of aktis ray}

Australian English dictionary. 2014.

Look at other dictionaries:

  • actino- — ♦ Élément, du gr. aktis, aktinos « rayon », qui sert à former des mots savants. ⇒ACTIN(O) , (ACTIN , ACTINO ), élément préf. Tiré du gr. aktis, aktinos « rayon », sert à former des subst. et qq. adj. sav. appartenant en gén. aux sc. naturelles… …   Encyclopédie Universelle

  • actino- — Prefijo que significa rayo de luz. Medical Dictionary. 2011 …   Diccionario médico

  • actino — Element prim de compunere savantă cu semnificaţia rază , radiaţie . [var. actin . / < fr. actin(o) , cf. gr. aktis, nos – rază]. Trimis de LauraGellner, 08.10.2004. Sursa: DN  ACTIN(O) elem. rază , radiaţie . (< fr. actin/o/ , cf. gr.… …   Dicționar Român

  • actino- — before vowels actin , comb. form meaning pertaining to rays, from Gk. aktis (gen. aktinos) ray, radiance; perhaps cognate with Skt. aktuh light, ray, Goth. uhtwo dawn, daybreak, Lith. anksti early …   Etymology dictionary

  • actino- — [ak′tə nō΄, ak tin′ə] [< Gr aktis (gen. aktinos), ray] combining form 1. of actinism or actinic rays [actinometer] 2. Biol. of radiated structure [actinomycete] …   English World dictionary

  • actino- — ► prefijo Componente de palabra procedente del gr. aktis, inos, que significa rayo luminoso: ■ actinógrafo. * * * actino Elemento prefijo del gr. «aktís, înos», rayo. * * * ► Prefijo procedente del gr. aktís, aktinos, rayo de luz. Denota relación …   Enciclopedia Universal

  • actino- — combining form see actin …   New Collegiate Dictionary

  • actino- — a combining form with the meaning ray, beam, used in the formation of compound words, with the particular senses radiation in the physical sciences (actinometer) and having raylike structures, radiate in form in biology (actinomyces; actinopod).… …   Universalium

  • actino- — Combining form meaning a ray, as of light; applied to any form of radiation or to any structure with radiating parts. SEE ALSO: radio . [G. aktis, aktinos, a ray of light, a beam.] …   Medical dictionary

  • actino — pref. having a radial structure; of radiation …   English contemporary dictionary

  • actino- —    A prefix (word beginning) meaning radial in form …   Glossary of Art Terms