Noun | 1. | ![]() chemical element, element - 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 radiochlorine - a radioactive isotope of chlorine common salt, sodium chloride - a white crystalline solid consisting mainly of sodium chloride (NaCl) gas - a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely halogen - any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions |
2. | cl - a metric unit of volume equal to one hundredth of a liter metric capacity unit - a capacity unit defined in metric terms cc, cubic centimeter, cubic centimetre, milliliter, millilitre, ml, mil - a metric unit of volume equal to one thousandth of a liter | |
Adj. | 1. | cl - being ten more than one hundred forty cardinal - being or denoting a numerical quantity but not order; "cardinal numbers" |