plynovou

Plynovou is a form of the Czech adjective plynový, meaning gas or gas-powered. It is not a standalone noun; it is used to describe feminine singular nouns in certain grammatical cases, specifically the accusative and the instrumental.

Etymology and grammar: The word derives from the Czech noun plyn, meaning gas, with the common adjectival suffix -ový. In feminine singular, the nominative form is plynová, while the accusative singular and the instrumental singular are plynovou. This distinction is part of standard Czech adjective declension, where adjectives agree with the gender, number, and case of the nouns they modify.

Usage: Plynovou is used whenever a feminine noun in the accusative or instrumental case is described as gas-related or gas-powered. It commonly appears with everyday objects such as masks and lamps, as well as in broader technical or historical contexts mentioning gas as a substance or fuel.

Examples:

- Použil plynovou masku. (He used a gas mask.)

- Místnost byla osvětlená plynovou lampou. (The room was lit by a gas lamp.)

- Doprava byla řízena plynovou výhybkou, v některých částech města však fungovala i s plynem. (Note: plynovou can appear in different phrases depending on the noun; the exact wording depends on the noun and case.)

Notes: Because plynovou is a grammatical form rather than a standalone noun, its meaning is determined by the noun it modifies. In most everyday contexts, the term signals either that something is gas-powered or that it relates to gas in a descriptive way, and it appears only with feminine nouns in the appropriate grammatical cases.