Wiktionary
subdisciplines
n. (plural of subdiscipline English)
Usage examples of "subdisciplines".
He knew that Nicholas was a ninja just as he knew that there was a whole range of subdisciplines in which Nicholas could be his sensei.
It was an exhausting business even for one such as he, for he knew by observing carefully that this particular dojo specialized not only in a myriad of arcane bujutsu subdisciplines involving the body but a number involving the mind as well.
Because so much telescope time had been freed when the signal from Vega had ceased, there was a beady air of progress in a dozen long-languishing subdisciplines of radio astronomy.