trialler

Etymology

From trial + -er.

trialler means A horse or a dog used for trialling. Lexicurio rates it Sui generis — a strength score of 91 out of 100.

noun

A horse or a dog used for trialling.“Ch. Doony Bluebell, Fairholme Trusty, Type, and Typist, are notable, while the blue roan, Fairholme Rally, has attained conspicuous success as a field trialler, and at stud was responsible for transmitting length of head, then much needed in the breed, and sired innumerable winners.”
A motorcycle specialized for trials events.“The 350 Alpina puts out two less horsepower than a 125 Elsinore. We got 18 horses on the pump. A 27mm Amal mixes. The bike isn’t as sluggardly as one might expect for a zooted-up trialer. One of ’em finished ninth in the 350 Expert at Hopetown last year. Mike Hannon must have ridden his bejeebers off.”