seacoal

Noun

seacoal (uncountable)

1. Coal from the sea: mineral coal that washes up from the sea onto beaches.
   • John Thompson of Setauket has a permit to go to Flushing and other parts of Long Island to search for sea-coal, of which he hath probable information.1677 October 9, Martha Bockée Flint (1841-1900), editor, Early Long Island, a colonial study, Knickerbocker Press, published 1896, page 22 note 2
2. (Southern-England, historical) Coal from across the sea: mineral coal, as opposed to charcoal, in a time and place in which the former arrived by ship and the latter arrived overland (such as London in Elizabethan times).
   • […] and then of Sea-Coal and other necessary Fewel, fit for the working or melting of these Metalls; […]1662, Henry More, An Antidote Against Atheism, Book II, A Collection of Several Philosophical Writings of Dr. Henry More, p. 49
   • And the change came fast. In 1570 there was still little sign of any major divergence from the traditional use of wood as fuel. Less than forty years later, in 1607, a case brought by the Crown in the Star Chamber stated as fact that ‘sea coal’ — a name for the coal that arrived in London by ship...2020, Ruth Goodman, The Domestic Revolution: How the Introduction of Coal Into Victorian Homes Changed Everything, Liveright, →ISBN, page xvii
3. (US, historical) Coal to be used at sea: a certain class of mineral coal, especially suitable for the steam engines of ships at sea and locomotives.

   Synonyms:

   steam coal

   1. (US, historical) Such coal used in foundry practice, intermixed with foundry sand or applied in a layer on its face, to modify the behavior of the molten metal.