Nihoner
表層形
とこじらみ
トコジラミ
名詞

とこじらみ (トコジラミ)

Tokojirami · とこじらみ — bed bug (Cimex lectularius), bedbug

Other ways to say “bed bug” in Japanese →

とこじらみ in rōmaji: tokojirami.

名詞 普通名詞 一般 *
📝 床虱 🔤 * 📐 *
Updated: 2026年10月4日
📖 Grammar Information
表層形 (Surface)
とこじらみ
見出し語 (Lemma)
床虱
読み (Reading)
トコジラミ
品詞 (POS)
名詞・普通名詞・一般・*
活用型 (Conj. Type)
*
活用形 (Conj. Form)
*
表記 (Orthography)
とこじらみ
読み・基本形
トコジラミ
表記・基本形
とこじらみ
見出し語の読み
トコジラミ
How it's used

Typically encountered in public health announcements, news reports, or travel advice about bed bugs, especially in hotels.

⚖️ Often confused with 南京虫 (nankin mushi), but トコジラミ is the more common term in modern Japanese.

💡 English Meaning

とこじらみ means “bed bug (Cimex lectularius), bedbug” — full definition & examples →

⭐ Dictionary Form

床虱 (トコジラミ) — main entry →

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とこじらみ
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Reading & Info
トコジラミ
Lemma: 床虱
名詞普通名詞一般*
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💡
Did you know · 名詞
名詞 (nouns) are the backbone of Japanese sentences. They can be combined with particles like が, を, に, で to indicate grammatical role.
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語
❓ About this entry
What is the difference between surface form and lemma? ▼
The surface form (とこじらみ) is the exact text as it appeared in the corpus — it may be conjugated or inflected. The lemma (床虱) is the dictionary base form. For example, 食べた (surface) has the lemma 食べる.
What does the reading (pron) field mean? ▼
The reading shows the pronunciation in hiragana or katakana as recorded by UniDic. For kanji entries this is the standard reading of this specific surface form — which may differ from other readings of the same kanji.
What is UniDic? ▼
UniDic is a comprehensive Japanese lexicon developed by the National Institute for Japanese Language and Linguistics (NINJAL). It provides detailed morphological information for modern Japanese words, used in NLP tools like MeCab.
How do I save this entry? ▼
Click the ★ save button in the word card above (you need to be logged in). Saved entries appear in your personal Saved Dictionary page for quick review later.