English

Noun

seacoal ‎(uncountable)

1. (archaic) mineral coal (as opposed to charcoal)
   • 1662, Henry More, An Antidote Against Atheism, Book II, A Collection of Several Philosophical Writings of Dr. Henry More, p. 49:

     " […] and then of Sea-Coal and other necessary Fewel, fit for the working or melting of these Metalls; […] "