被 験 者(ひけんしゃ)

ひけんしゃ

noun

test subject; participant (in an experiment)

1. test subject; experimental participant

A person who undergoes testing or participates in a scientific experiment, clinical trial, or psychological study. Used in academic and medical contexts.

被験者(ひけんしゃ)を募集(ぼしゅう)する。

We recruit test subjects.

被験者(ひけんしゃ)の同意(どうい)を得(え)てから実験(じっけん)を始(はじ)めた。

The experiment began after obtaining the subjects' consent.

この臨床(りんしょう)試験(しけん)では200人(にん)の被験者(ひけんしゃ)が参加(さんか)した。

Two hundred participants took part in this clinical trial.

Composed of 被(ひ) (to undergo, receive) + 験(けん) (test, examine) + 者(しゃ) (person). Refers to the person being tested or examined in a research setting. Common in academic papers, medical trials, and psychology studies.

Common collocations

被験者(ひけんしゃ)を募集(ぼしゅう)する: to recruit test subjects
被験者(ひけんしゃ)の同意(どうい): subject's consent
被験者(ひけんしゃ)番号(ばんごう): subject number
被験者(ひけんしゃ)グループ: subject group

Similar words

実験(じっけん)対象(たいしょう): experimental target — more general, can include non-human subjects
参加者(さんかしゃ): participant — broader term used in surveys, events, and studies alike
患者(かんじゃ): patient — used in medical treatment contexts rather than research

Related Words

Compare: 参加者(さんかしゃ) (participant)

Compare: 患者(かんじゃ) (patient)

general

Added 2026.4.8 6:09 · Revised 2026.9.2 13:02

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