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It appeared simply as "縮尺：≒1/82" and the meaning is quite clear
(="approximately 1/82 scale").

Jim Breen's wwwjdic does not seem to contain an entry for the symbol.

jisho.org suggests only おおよそ 《大凡》but not the symbol itself.

Just randomly googling the symbol does not give me an answer in which I could
have confidence. At least it's listed here, though without pronunciation:

<https://en.wikipedia.org/wiki/Approximation#Unicode>

I came across it here, if the source is relevant (one needs to download the
pdf for the Hayabusa (隼) to see it in the header.

<https://ta7080.wixsite.com/paperfactory/%E8%A4%87%E8%A3%BD-%E3%83%80%E3%82%A6%E3%83%B3%E3%83%AD%E3%83%BC%E3%83%89-download-1-4>
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question
pronunciation abbreviations symbols
How does one pronounce ≒ the symbol for "approximately"?
We pronounce/read ≒ as 「ニアリーイコール」 in maths class in Japanese schools.

For example, we read these:

> 10 ÷ 3 ≒ 3.3  
>  「じゅうわるさん ニアリーイコール さんてんさん」  
>  √2 ≒ 1.414  
>  「ルート に ニアリーイコール いってんよんいちよん」

[![](https://i.stack.imgur.com/SeNDT.png)](https://i.stack.imgur.com/SeNDT.png)

参考：

<https://sci-pursuit.com/math/nearly-equal.html>  
<https://atarimae.biz/archives/17673>  
<https://www.nli-research.co.jp/report/detail/id=62678?site=nli>
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answer
According to the symbol's [Japanese Wiktionary
page](https://ja.wiktionary.org/wiki/%E2%89%92), the JIS standard assigns to
`≒` the common name 「ほとんど等{ひと}しい」.

The quoted english name 「APPROXIMATELY EQUAL TO OR THE IMAGE OF」 which is also
mentioned is actually the one defined by the Unicode standard.

I wonder whether `≒` could be pronounced 近似{きんじ} when reading aloud...

> 日本において近似を表す記号。JISにおける日本語通称は「ほとんど等しい」、JIS上の名称は「APPROXIMATELY EQUAL TO OR THE
> IMAGE OF」。

Apparently, this symbol is only used in Japan, while its standard
international equivalent is `≈`.

> 日本においてのみ通用。国際標準は「≈」、その他、「∼」,「≃」,「≅」が慣用的に用いられる。
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answer