simple sentence

...There are various types of subordinate clauses, each of which is called a noun clause, adverb clause, relative clause, etc. depending on its function. A sentence that does not contain a clause (if the entire sentence is also called a clause, then it would be a sentence consisting of only one clause) is called a "simple sentence," a sentence that contains a coordinate clause is called a "compound sentence," and a sentence that contains a main clause and a subordinate clause is called a "complex sentence." For example, "My brother is running.

*Some of the terminology explanations that mention "simple sentence" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…従属節にも種々のものがあり，それぞれその機能等によって名詞節，副詞節，関係節等と呼ばれる。節を含まない文(文全体のことをも節というならば〈ただ一つの節から成る文〉ということになる)を〈単文simple sentence〉といい，等位節を含む文を〈重文compound sentence〉，主節･従属節を含む文を〈複文complex sentence〉ということがある。たとえば〈兄が走る。…

※「simple sentence」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報