irregolari

Irregolari is the plural form of irregolare in Italian, an adjective and noun meaning irregular or nonconforming. It is used to describe things that do not follow a regular pattern, order, or standard form, and can refer to people, objects, or phenomena in different fields.

In linguistics and grammar, irregolari refers to verbs or forms that do not follow the standard conjugation or declension patterns. In Italian, a relatively small set of verbs are irregular across various tenses and moods, with forms that deviate from the regular endings or stems. Examples include essere, avere, andare, fare, dire, venire, and stare. The term is used to group these verbs as a class of irregulars, highlighting deviations such as stem changes, altered vowels, or unique forms in particular tenses.

In astronomy, galassie irregolari designate galaxies that lack a definite elliptical or spiral structure. Irregular galaxies are typically small to medium in size, with irregular shapes and chaotic internal features. They often exhibit active star formation and can result from gravitational interactions or mergers. In classifications, they are grouped under the Irr (Irr 1, Irr 2) category rather than the regular Hubble types.

In other contexts, irregolari may describe irregular patterns or events, such as aritmie irregolari (irregular heart rhythms) or irregular cellular shapes in biology. The term comes from Latin irregularis, conveyed into Italian as irregolare, with the plural irregolari used across disciplines to denote deviations from standard, regular forms.