English-Thai Dictionary
icosahedron
N สิ่ง ที่ มี 12 เหลี่ยม และ 12 ด้าน
Webster's 1828 Dictionary
ICOSAHEDRON
n.[supra. ] A solid of twenty equal sides. In geometry, a regular solid, consisting of twenty triangular pyramids, whose vertices meet in the center of a sphere supposed to circumscribe it, and therefore have their highths and bases equal.
Webster's 1913 Dictionary
ICOSAHEDRON
I `co *sa *he "dron, n. Etym: [Gr. (Geom.)
Defn: A solid bounded by twenty sides or faces. Regular icosahedron, one of the five regular polyhedrons, bounded by twenty equilateral triangules. Five triangules meet to form each solid angle of the polyhedron.
New American Oxford Dictionary
icosahedron
i co sa he dron |īˌkōsəˈhēdrən, īˌkäsə -aɪˌkoʊsəˈhidrən | ▶noun ( pl. icosahedrons or icosahedra |-drə | ) a solid figure with twenty plane faces, esp. equilateral triangular ones. DERIVATIVES i co sa he dral |-drəl |adjective ORIGIN late 16th cent.: via late Latin from Greek eikosaedron, neuter (used as a noun ) of eikosaedros ‘twenty-faced. ’
Oxford Dictionary
icosahedron
icosahedron |ˌʌɪkɒsəˈhiːdrən, -ˈhɛd -| ▶noun ( pl. icosahedra |-drə | or icosahedrons ) a solid figure with twenty plane faces, especially equilateral triangular ones. DERIVATIVES icosahedral adjective ORIGIN late 16th cent.: via late Latin from Greek eikosaedron, neuter (used as a noun ) of eikosaedros ‘twenty-faced ’.
The Wordsmith Dictionary