> as lemmas
heptangular
heptangular adj.
Brit. 
/hɛpˈtaŋɡjᵿlə/
, /hɛpˈtaŋɡjᵿlə/U.S. /hɛpˈtæŋɡjələr/
/hɛpˈtæŋɡjələr/ΘΚΠ
the world > space > shape > angularity > specific angular shape > [adjective] > polygonal > heptagonal
heptagonal1612
septilateral1650
septangular1656
septangled1702
heptangular1706
septagon1756
the world > relative properties > number > geometry > shape or figure > [adjective] > two-dimensional > heptagonal
heptagonal1612
septilateral1650
septangular1656
heptahedrical1658
septangled1702
heptangular1706
septagon1756
heptahedral1758
1706 Phillips's New World of Words (new ed.) Heptangular Figure is that which consists of seven Angles.
1752 J. Hill Gen. Nat. Hist. III. 203 The middle of the body heptangular.
heptangular
heptangular adj.
Brit. /hɛpˈtaŋɡjᵿlə/
, /hɛpˈtaŋɡjᵿlə/U.S. /hɛpˈtæŋɡjələr/
having seven angles./hɛpˈtæŋɡjələr/<
as lemmas
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- rubble bed
- rubble building
- rubble chalk
- rubble coal
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- rubbled
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