Mineral coal, as distinct from other types of coal such as charcoal.
〈古〉（有别于木炭等的）海运煤，矿化煤
Example sentencesExamples
In 1306 King Edward I of England issued a proclamation banning the use of sea coal in London due to the smoke it caused.
However, a more likely explanation is that sea-coal was originally found in a washed-up form on the beaches of the North-East and other parts of the country.
Definition of sea coal in US English:
sea coal
noun
archaic
Mineral coal, as distinct from other types of coal such as charcoal.
〈古〉（有别于木炭等的）海运煤，矿化煤
Example sentencesExamples
However, a more likely explanation is that sea-coal was originally found in a washed-up form on the beaches of the North-East and other parts of the country.
In 1306 King Edward I of England issued a proclamation banning the use of sea coal in London due to the smoke it caused.