Definition of "belldom"

They had a thick rim, and when struck with pieces of wood, gave out a tone deeper than that of some of the Great Toms renowned in belldom.

1857, William Chambers, Robert Chambers, “Something about bells”, in Chambers's Journal, volume 28, number 207, page 398

There is probably the greatest collection of bells to be found anywhere collected from the whole world of belldom.

1922, “History of San Bernardino and Riverside Counties”, in John Brown, James Boyd, editors, (Please provide the book title or journal name)‎, page 674

Wandering through the labyrinthine mazes of passages and arches and through the sun-kissed Garden of the Bells, one sees the complete evolution of belldom from the crude cowbells of the Roman campagna to the huge, resonant guardian of some European cathedral.

1934, Marie T. Walsh, “The mission bells of California”, in (Please provide the book title or journal name)‎, page 309

Nevertheless, John D. Rockefeller, Jr., set new records in belldom when he donated the Riverside instrument [...]

1976, L. Elsinore Springer, That Vanishing Sound, page 185

"Sisters in belldom!" the white man said approvingly, from a distance.

2002, K. S. Maniam, “The kling-kling woman”, in Virtual Lotus: Modern Fiction of Southeast Asia, page 125