noun
half-integer
Mathematical term for a number of the form n + 1/2 where n is an integer. Used in number theory and physics.
半整数は、整数と整数のちょうど中間にある数です。
A half-integer is a number exactly halfway between two integers.
整数 means 'integer', a whole number. 半整数 is a number like 1.5, 2.5, etc., halfway between integers.
Compound of 半 (half) and 整数 (integer). The term is a direct calque from English 'half-integer'.