1. chlorine, Cl, atomic number 17, chemical element, element, gas, halogen

usage: 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)

2. centiliter, centilitre, cl, metric capacity unit

usage: a metric unit of volume equal to one hundredth of a liter


1. one hundred fifty, 150, cl, cardinal (vs. ordinal)

usage: being ten more than one hundred forty

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See also: cl (Dictionary)