nouns
single thickness of usually some homogeneous substance
"slices of hard-boiled egg on a bed of spinach"
a relatively thin sheetlike expanse or region lying over or under another
is a type of (narrower)
the extended spatial location of something
"the farming regions of France"; "religions in all parts of the world"; "regions of outer space"
an abstract place usually conceived as having depth
"a good actor communicates on several levels"; "a simile has at least two layers of meaning"; "the mind functions on many strata simultaneously"
a hen that lays eggs
is a type of (narrower)
adult female chicken
thin structure composed of a single thickness of cells
is a type of (narrower)
a particular complex anatomical part of a living thing
"he has good bone structure"