Lower layer Synonyms

Lower replaced

secondary layer

Definitions for Lower

(adjective) having not so great importance or rank as another
(adjective) situated lower down
(verb) to cause to fall intentionally or unintentionally

LL abbreviation

LL is an abbreviation for Lower Layer

What does LL stand for?

LL stands for "Lower Layer"

Layer replaced

lower surface

lower stratum

Definitions for Layer

(noun) single thickness of usually some homogeneous substance
(noun) a relatively thin sheetlike expanse or region lying over or under another
(noun) thin structure composed of a single thickness of cells