fázissal

Fázissal is the instrumental singular form of the Hungarian noun fázis, meaning "with phase". It is used to indicate that an action, property, or relationship is related to a phase or is performed using a phase. The noun fázis has several related senses: a stage in a process, a state of matter in chemistry, or a point in a periodic cycle such as a wave’s phase or the Moon’s illumination phase. In technical and scientific language, fázissal often appears to specify phase-related conditions.

The term fázis is a loanword from Western European languages, most likely from French phase or Latin phasis, entering Hungarian via German or other sources. The form fázis became established in Hungarian in the 19th century and has since been used across physics, chemistry, astronomy, and engineering.

Grammatically, fázissal is formed by adding the instrumental suffix -szal to fázis, with assimilation yielding fázissal. It answers the question "mivel?" (with what?) and is typically used with verbs and phrases that describe measurements, controls, or comparisons related to a phase. For example: A mérés fázissal történik. Az interferencia fázissal módosítható. A jel fázissal arányos.

Although common in technical writing, fázissal is less likely to appear in everyday conversation, where the more general term "fázis" or periphrases are preferred. It remains a precise grammatical form that enables explicit reference to a phase in experimental descriptions and theoretical discussions. Kapcsolódó fogalmak: fázis, hullám, interferencia.