: a piece of construction material (such as laminated rock) prepared as a shingle for roofing and siding
2
: a dense fine-grained metamorphic rock produced by the compression of various sediments (such as clay or shale) so as to develop a characteristic cleavage
3
: a tablet (as of slate) used for writing on
4
a
: a written or unwritten record (as of deeds)
started with a clean slate
b
: a list of candidates for nomination or election
5
a
: a dark purplish gray
b
: any of various grays similar in color to common roofing slates
Noun Some school blackboards are made of slate. The house has a slate roof.
Word History
Etymology
Noun
Middle English sclate, slate, from Anglo-French *esclat, from esclater to splinter, break off, of Germanic origin; akin to Old High German zesleizzen, slīzan to tear apart — more at slit