| 释义 |
pen·tag·o·nal
\(ˈ)pen.|tagənəl, -taig-\ adjective
Etymology: Middle French, from Medieval Latin pentagonalis, from Late Latin pentagonum + -alis -al
1. : having five angles and five sides : five-sided : divided into pentagons
< a pentagonal dodecahedron >
2. : having a pentagon as section or base
< a pentagonal column >
< a pentagonal pyramid >
3. : relating or belonging to a pentagonal system
• pen·tag·o·nal·ly \-əlē -əli\ adverb |