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heptahedron

N สิ่ง ที่ มี เจ็ดเหลี่ยม หรือ เจ็ด ด้าน 

 

Webster's 1913 Dictionary

HEPTAHEDRON

Hep `ta *he "dron, n. Etym: [Hepta- + Gr. heptaèdre.] (Geom.)

 

Defn: A solid figure with seven sides.

 

New American Oxford Dictionary

heptahedron

hep ta he dron |heptəhēdrən heptəˈhiːdrən | ▶noun ( pl. heptahedrons or heptahedra |-ˈhēdrə | ) a solid figure with seven plane faces. DERIVATIVES hep ta he dral |-ˈhēdrəl |adjective ORIGIN late 17th cent.: from hepta- ‘seven ’ + -hedron, on the pattern of words such as polyhedron .

 

Oxford Dictionary

heptahedron

heptahedron |ˌhɛptəˈhiːdrən, -ˈhɛd -| ▶noun ( pl. heptahedra |-drə | or heptahedrons ) a solid figure with seven plane faces. DERIVATIVES heptahedral adjective ORIGIN late 17th cent.: from hepta- ‘seven ’ + -hedron, on the pattern of words such as polyhedron .