> as lemmas
octacarbon
octacarbon n.
Brit. 
/ˈɒktəˌkɑːb(ə)n/
, /ˈɒktəˌkɑːb(ə)n/U.S. /ˈɑktəˌkɑrbən/
/ˈɑktəˌkɑrbən/ΚΠ
1902 N.E.D. at Octa- Octacarbon.
1997 Chem. Physics Lett. 280 227 Highly symmetric octacarbon clusters, i.e. a cube (Oh), a twisted cube (Td), a tricyclic cage (C3v) and a planar (D4h) structure.
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as lemmas