demi-human; subhuman
Refers to a being that is partly human or human-like but not fully human, often used in fantasy, science fiction, or mythological contexts. Compare with 亜人, which is a more common term for similar concepts.
See also: 亜人
そのファンタジー小説には、エルフやドワーフなどの亜人間が登場する。
In that fantasy novel, demi-humans such as elves and dwarves appear.
ゲームの中で、プレイヤーは亜人間の種族を選べる。
In the game, players can choose a demi-human race.
Compound of 亜 (a, 'sub-', 'semi-') + 人間 (ningen, 'human'). The exact origin is uncertain, but it likely emerged in modern Japanese as a calque or translation of Western fantasy concepts.