The Wordsmith Dictionary

Exact matches only Allow stemming Match all embedded

English-Thai Dictionary

spinthariscope

N เครื่องมือ ฟิสิกส์ สำหรับ สังเกต การ ของ ธาตุ เรเดียม

Webster's 1913 Dictionary

SPINTHARISCOPE

SPINTHARISCOPE Spin *thar "i *scope, n. [Gr. spinqari `s spark + -scope. ]

Defn: A small instrument containing a minute particle of a radium compound mounted in front of a fluorescent screen and viewed with magnifying lenses. The tiny flashes produced by the continual bombardment of the screen by the a rays are thus rendered visible. --Spin *thar `i *scop "ic (#), a.

New American Oxford Dictionary

spinthariscope

spin thar i scope |spinˈTHarəˌskōp spɪnˈθɛrəskoʊp | ▶noun Physics an instrument that shows the incidence of alpha particles by flashes on a fluorescent screen. ORIGIN early 20th cent.: formed irregularly from Greek spintharis ‘spark ’ + -scope .

Oxford Dictionary

spinthariscope

spinthariscope |spɪnˈθarɪskəʊp | ▶noun Physics an instrument that shows the incidence of alpha particles by flashes on a fluorescent screen. ORIGIN early 20th cent.: formed irregularly from Greek spintharis ‘spark ’ + -scope .