noun which may take the genitive case particle 'no', na-adjective, noun
diverse; various; wide-ranging
Formal or written-sounding word for something branching into many areas or covering a broad variety. Very often used in the set pattern 多岐にわたる, meaning 'to cover a wide range.'
See also: 多岐にわたる
彼の研究テーマは多岐にわたる。
His research topics cover a wide range.
会議では多岐な問題が取り上げられ
Various issues were brought up at the meeting.
Means broad or extensive in scope; 多岐 stresses variety and many branches, while 広範 stresses breadth of coverage.
Sino-Japanese compound: 多 means 'many' and 岐 means 'branch' or 'fork,' giving the idea of something branching into many directions. This component explanation matches the modern meaning; it is not a claim about the word's full historical development.