تلفظ بین المللی : /ɪɹˈaʃənəlnəs/ تلفظ : [I2r'aS@-n@Ln@s]
English
Irrationality.
An unfermentable sugar, isomeric with glucose, found in the ripe berries of the rowan tree, or sorb, and extracted as a sweet white crystalline substance; -- called also mountain-ash sugar.
