noun
Refers to any small, long-armed ape of the family Hylobatidae. In everyday Japanese, the katakana form テナガザル is standard.
動物園でテナガザルが木から木へ飛び移っていた。
At the zoo, a gibbon was swinging from tree to tree.
Compound of 手長 (てなが, 'long-armed') and 猿 (さる, 'monkey'), with rendaku voicing of さる to ざる.