bottomlayer

noun

UK /ˈbɒtəmˌleɪə/

US /ˈbɑːtəmˌleɪər/

The bottom layer is the lowest part of something that has layers.

The bottom layer of the cake is chocolate.

SYNONYMS

base layer lowest layer underlayer foundation layer bottom tier

RELATED WORDS

layer base bottom foundation stratum

OTHER MEANINGS

2. The lowest level in a computer graphics image or design file.

Hide the bottom layer to see the background picture.

3. The deepest or most basic level of a system or idea.

Trust is the bottom layer of a good friendship.

4. The lowest layer of soil or rock in the ground.

The bottom layer of soil was hard and rocky.