Pronunciation of 閾値 : いきち or しきいち?


Last week I saw the word 閾値 and when looking it up in Gjiten I see two
pronunciations, both marked as "popular":

  * 閾値 (いきち) (n) threshold (amount, dose, etc.); (P); 
  * 閾値 (しきいち) (n) threshold (amount, dose, etc.); (P); 

Which one should I use?  
In the context of professional discussion with colleagues and clients, if that
matters.




(thanks to Ito's comment who pointed me in the right direction)

The characters 閾値 should read いきち as per their original pronunciation and is
used as is by major dictionary Daijirin.

しきいち is widely used because it's very close to the other word "敷居" (しきい) which
also means threshold.

Pronouncing しきい値 is thus grammatically considered a mistake although widely
used.

Key sentences:

> 「しきい値」は「敷居」から来た別の単語だが、現在は閾値を「しきいち」と読むのも誤用の定着として容認されつつある
>
> 「閾＝敷居」という意味・音声上の類似があることなどが、このような混乱を生じた原因と思われる

sources: <http://e-words.jp/w/E996BEE580A4.html>
<http://d.hatena.ne.jp/keyword/%A4%B7%A4%AD%A4%A4%C3%CD>




(thanks to Ito's comment who pointed me in the right direction)

The characters 閾値 should read いきち as per their original pronunciation and is
used as is by major dictionary Daijirin.

しきいち is widely used because it's very close to the other word "敷居" (しきい) which
also means threshold.

Pronouncing しきい値 is thus grammatically considered a mistake although widely
used.

Key sentences:

> 「しきい値」は「敷居」から来た別の単語だが、現在は閾値を「しきいち」と読むのも誤用の定着として容認されつつある
>
> 「閾＝敷居」という意味・音声上の類似があることなどが、このような混乱を生じた原因と思われる

sources: <http://e-words.jp/w/E996BEE580A4.html>
<http://d.hatena.ne.jp/keyword/%A4%B7%A4%AD%A4%A4%C3%CD>

