1.
hexagon
A six-sided polygon. Used in mathematics, and as a description for honeycomb cells, nuts and bolt heads, snowflake patterns, and other six-sided objects.
Compound of 六 (six) + 角 (angle / corner) + 形 (shape). The reading is ろっかくけい — the second consonant doubles via sokuon. Also sometimes pronounced ろっかっけい in speech, but ろっかくけい is the standard reading.
Common collocations
- 正六角形: regular hexagon (all sides and angles equal)
- 六角形の形: hexagonal shape
- ハチの巣構造: honeycomb structure (six-sided)