opopanax /ə-popˈə-naks/

1. A gum resin formerly used in medicine, obtained from the roots of a Persian (and S European) species of parsnip
2. A perfume obtained from the plant Commiphora

• coal-fired
• coalfish
• coalfishes
• coal-flap
• coal-flaps
• coal gas
• coal gases
• coal heaver
• coal heavers
• coal hole
• coal holes
• coalhouse
• coalhouses
• coalier
• coaliest
• coaling
• coaling station
• coaling stations
• coalise
• coalised
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• coalising
• Coalite
• coalition
• coalitional