Someone with exceptional skills in a certain field.
A type of firefighter highly skilled in wildfire firefighting without external support, using basic tools that are backpacked in and manhandled about.
A fast freight train.
A dose of recreational drugs deliberately laced with poison.
To give (somebody) a dose of recreational drugs deliberately laced with poison.
Displaying talent.
Highly skilled.
Someone who is an expert in, or devoted to, some specific branch of study or research.
A stenotopic species.
A physician whose practice is limited to a particular branch of medicine or surgery.
Any of several non-commissioned ranks corresponding to that of corporal.
An organism that is specialized for a particular environment.
Specialised, involving detailed knowledge of a restricted topic.