noun
dodecahedron
doh-dek-uh-HEE-drun
Dodecahedron (noun) means a solid shape with twelve faces, most familiarly the regular kind whose faces are all regular pentagons. Example: “A regular dodecahedron has twelve identical pentagonal faces.”
noun
1
technical A solid shape with twelve faces, most familiarly the regular kind whose faces are all regular pentagons.
"A regular dodecahedron has twelve identical pentagonal faces."
"The board game piece was a dodecahedron with a number on each face."
"The dodecahedron is one of the Platonic solids."
How to use dodecahedron
Learner’s notesIn plain EnglishA solid shape with twelve flat faces.
When to use it
It is a geometry term, rarely used outside maths and science.
Memory tip
The dodeca- part means twelve, so you can remember the number of faces.
Trace the full origin ↓
Common pairings
regular dodecahedron
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Fill the gap
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A regular _____ has twelve identical pentagonal faces.
Etymology
From Ancient Greek dodekaedron. It can also be analysed as dodeca- plus -hedron.
Rhymes for dodecahedron
See all rhymes for dodecahedron →Frequently asked questions
What is a dodecahedron?
A dodecahedron is a polyhedron with twelve faces. The regular version has regular pentagons as faces.
What is the plural of dodecahedron?
The plural can be dodecahedra or dodecahedrons.
Is a dodecahedron a Platonic solid?
The regular dodecahedron is one of the Platonic solids.
What is the meaning of dodecahedron?
"dodecahedron" (noun) means a solid shape with twelve faces, most familiarly the regular kind whose faces are all regular pentagons.
