可か付ふ番ばん集しゅう合ごうかふばんしゅうごうMeanings1noundenumerable set; countable setmathematics›Technical term in set theory; a set whose elements can be put into a one-to-one correspondence with the natural numbers. See also 可算集合.See also: 可算集合有ゆう理り数すう