IPA: /ˈbɒbˌslɛdə/
KK: /ˈbɑbˌslɛdər/
A person who competes in the sport of bobsledding, which involves racing down a narrow, twisting, banked, and icy track in a small sled.
The bobsledder trained hard for the upcoming Winter Olympics.
Bobsledder → The word is formed from 'bobsled' (a compound of 'bob' meaning to move up and down and 'sled' meaning a vehicle of various types for sliding on snow) and '-der' (a suffix indicating a person who performs a specific action). A bobsledder is a person who participates in the sport of bobsledding, which involves racing down a track in a bobsled.
Think of someone who 'slides' ('sled') down a track while 'bobbing' up and down — that's what a bobsledder does.