eierkool

 

Dutch Wikipedia has an article on:

eierkool

Wikipedia ^nl

From ei (“egg”) +‎ -er- +‎ kool (“coal”).

• IPA^(key): /ˈɛi̯.ərˌkoːl/
• Hyphenation: ei‧er‧kool

eierkool f (plural eierkolen, diminutive eierkooltje n)

1. (chiefly plural) coal compressed into an egg-shape, which has a standardised volume and weight, used in stoves

   Synonym: extraciet