Japanese symbol for “infrared”
赤外
せきがい
Romaji: sekigai
infrared
In Japanese, infrared is 赤外, read せきがい (sekigai).
Before using these characters for a tattoo, check them with a native speaker. Dictionary words often have several meanings, and the right choice depends on context.
Meanings
- adj-na, adj-no infrared
Kanji and stroke order
Other Japanese words for “infrared”
| Word | Reading | Meaning |
|---|---|---|
| ＩＲ | アイ・アール ai・aaru | infrared radiation; infrared |
Related words
Words that share a kanji.
| Word | Reading | Meaning |
|---|---|---|
| 赤ちゃん | あかちゃん akachan | baby; infant |
| 赤い | あかい akai | red; crimson; scarlet |
| 赤字 | あかじ akaji | (being in) the red; deficit |
| 真っ赤 | まっか makka | bright red; deep red; flushed (of face) |
| 赤ん坊 | あかんぼう akanbou | baby; infant |
| 赤色 | あかいろ akairo | red; red color |
| 海外 | かいがい kaigai | foreign; abroad; overseas |
| 外国 | がいこく gaikoku | foreign country |
See also: Chinese symbol for “infrared”.
Data: JMdict (CC BY-SA 4.0); KANJIDIC2 (CC BY-SA 4.0); KanjiVG (CC BY-SA 3.0); wordfreq (CC BY-SA 4.0 (data)). Retrieved 2026-10-22.