A fine leather made from the hide of a calf.

Able to be calculated.

The period of duration from the first date of one month to the last date of the same month, which can thus vary from 28 to 31 days in length.

An intentional error, usually to avoid some worse outcome, especially when done as a ruse.

limelight

Alternative form of calci- (“calcium”)

(physics) A minor stable isotope of calcium, ⁴⁴₂₀Ca, having twenty protons and twenty-four neutrons; it amounts to about 2% of the element in nature

(physics) A naturally-occurring radioactive isotope of calcium, ⁴⁸₂₀Ca, having twenty protons and twenty-eight neutrons, and a half-life of 4.3x10¹⁹ years

(physics) A minor stable isotope of calcium, ⁴³₂₀Ca, having twenty protons and twenty-three neutrons; it amounts to about 0.1% of the element in nature

(physics) A rare stable isotope of calcium, ⁴⁶₂₀Ca, having twenty protons and twenty-six neutrons; it amounts to only 0.004% of the element in nature