Cl and Chemical element

Cl noun - A common nonmetallic element belonging to the halogens; best known as a heavy yellow irritating toxic gas; used to purify water and as a bleaching agent and disinfectant; occurs naturally only as a salt (as in sea water).

Chemical element and cl are semantically related. In some cases you can use "Chemical element" instead a noun "Cl".

Chemical element noun - Any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter.

Cl and chemical element are semantically related. Sometimes you can replace term "Cl" with "Chemical element", this terms are similar.