layer, stratum

BED
List of words for the clue layer, stratum from the crossword:
SEAM OZONE TIER CASTE HEN UVEA PLY COAT LEVEL CORNEUM CLASS CANOPY DERMA VENEER SALAMI EPIDERMIS DERMIS SKIN EMU
WordClue
GASmethane or ozone
PLYlayer of material
HOLEblack or ozone
SUPPERFood consumed before going to bed
TESTERcanopy over a bed
COATINGthin outer layer
RIVERBEDstream bed
FURNITUREbookcase or bed
PLYlayer of material
LAIClayman