adjective
Having relatively high density.
Compact; crowded together.
Thick; difficult to penetrate.
Opaque; allowing little light to pass through.
Obscure or difficult to understand.
(mathematics, topology, of a subset S of a topological space T, not comparable) Such that its closure in T is T.
Slow to comprehend; of low intelligence. (of a person)
noun
A thicket.