(physics) A rare stable isotope of argon, ³⁸₁₈Ar, having eighteen protons and twenty neutrons; it amounts to about 0.06% of the element in nature

(physics) The major stable isotope of potassium, ³⁹₁₉K, having nineteen protons and twenty neutrons; it amounts to over 93% of the element in nature

(physics) A rare stable isotope of argon, ³⁶₁₈Ar, having eighteen protons and eighteen neutrons; it amounts to about 0.3% of the element in nature

(physics) A minor stable isotope of silicon, ³⁰₁₄Si, having fourteen protons and sixteen neutrons; it amounts to 3% of the element in nature

Covering all 360 degrees of a circle. / (by extension) Comprehensive; incorporating all points of view. / Able to turn freely about an axis.

(uncountable) A medical ultrasound technique, used, for example, during pregnancy, providing three-dimensional-looking flat images. / (countable) An image so produced.

(paper) Abbreviation of thirty-twomo; a size of paper cut from standard uncut free sheets, corresponding to such a sheet folded into thirty-two leaves, yielding sixty-four pages when printed on both sides. Page size is dependent on the size of sheet used, with the largest standard size, Atlas (36" by 26") yielding a page size of 6-1/2" by 4-1/2".

(law) Abbreviation of United States Court of Appeals for the Third Circuit.

plural of 360

plural of 33