siding
Concise Oxford English Dictionary © 2008 Oxford University Press:
siding/ˈsʌɪdɪŋ/
▶noun
- 1 a short track at the side of and opening on to a railway line, for shunting or stabling trains.
- 2 N. Amer. a loop line.
- 3 N. Amer. cladding material for the outside of a building.
'siding' also found in these Oxford entries:

