Fázický

Fázický is an adjective derived from the Czech noun fáze (phase). It denotes relation to a phase of a periodic or oscillatory phenomenon. In standard contemporary Czech, the preferred form is fázový; fázický is relatively rare and may be found as an archaic or nonstandard variant. When used, it generally carries the same broad sense of phase-related properties as fázový, but its use is limited and can be regarded as stylistic or regional.

In physics, engineering and related fields, discussions of phase focus on concepts such as phase angle, phase difference, or phase modulation. The Czech terminology more commonly employs fázový in phrases like fázový posun (phase shift), fázový rozdíl (phase difference), or fázová modulace (phase modulation).

In materials science and thermodynamics, the standard term for a diagram representing the distribution of phases is fázový diagram (phase diagram). This shows the stability of solid, liquid, and gaseous phases under varying conditions, and the same semantic domain can be described with the broader phase vocabulary without relying on fázický.

Etymology and usage note: fázický is formed from fáze plus the suffix -ický, but the form is uncommon and largely confined to older texts or nonstandard writing. In modern technical Czech, fázový is the preferred adjective for phase-related concepts.