trainspotter
Concise Oxford English Dictionary © 2008 Oxford University Press:
trainspotter/ˈtreɪnspɒtə(r)/
▶noun Brit.
- 1 a person who collects locomotive numbers as a hobby.
- 2 often derogatory a person who obsessively studies the minutiae of any minority interest or specialized hobby.
– derivatives
trainspotting noun.
trainspotting noun.
'trainspotter' also found in these Oxford entries:

