ionilor

Ionilor is a Romanian inflected form that appears in two main grammatical and semantic contexts. It is the genitive/dative plural form of the proper name Ion, used to indicate possession or indirect object when referring to people named Ion (for example, casa Ionilor means the house of the Ions). It can also be the genitive/dative plural form of the common noun ion, referring to charged particles in physics or chemistry, in phrases such as mărimea ionilor (the size of the ions) or concentrația ionilor din soluție (the concentration of the ions in the solution). Because the same spelling arises from different roots, context is important for interpretation.

In terms of morphology, Ionilor is formed by adding the plural genitive/dative ending -ilor to the stem Ion, which matches the standard Romanian pattern for masculine nouns and proper names in the genitive plural. The form shows up in prose and technical writing when indicating possession or relatedness to multiple ions or to a family or group named Ion, depending on the sense.

Common examples include Casa Ionilor din sat (the Ion family’s house in the village) and mărimea ionilor din soluție (the size of the ions in the solution). The ambiguity of Ionilor is resolved by surrounding words that reveal whether Ion refers to a person or to the chemical term ion.

See also: Ion (name), Ion (chemistry).