chlorine

• n.[化学]塩素（化学元素17）

PIE*のghel（輝く）が語源で、語源的にはgall（金）と同じ。黄緑色に見えることから名付けられた。

chlorine

chlorine: [19] Chlorine is a greenish-yellow gas, and was named for its colour. The term was coined by the British chemist Sir Humphry Davy in 1810, from the Greek khlōrós ‘greenishyellow’. Of other words containing this element, chlorophyll [19] too was based on the notion of colour (in reference to the green colouring matter of leaves: the Greek elements literally mean ‘green leaf’), but chloroform [19], originally French, is a secondary formation based ultimately on chlorine (since it was originally regarded as a trichloride of formyl).
=> yellow

chlorine (n.)

nonmetallic element, the name coined 1810 by English chemist Sir Humphry Davy (1778-1829) from Latinized form of Greek khloros "pale green" (see Chloe) + chemical suffix -ine (2). Named for its color. Discovered 1774, but known at first as oxymuriatic acid gas, or dephlogisticated marine acid.

1. Since 1908， chlorine has been added to drinking water.

1908年以来塩素が飲料水に添加されている。

2. Chlorine is used to disinfect water.

塩素を給水消毒に用いた。

3. Chlorine is added to kill bacteria.

塩素添加は細菌を殺すためである。

4.Common salt is a compound of sodium and chlorine .

通常の食塩はナトリウムと塩素の化合物である。

5.Common salt is a compound of sodium and chlorine .

食塩はナトリウムと塩素の複合体である.