gasosos

Gasosos is a Portuguese adjective meaning gaseous. It describes matter that is in the gaseous state, as opposed to solid or liquid. In scientific writing, gasoso is used to characterize substances, environments, or mixtures where the material exists primarily as a gas. The term appears in phrases such as estado gasoso (gaseous state) and misturas gasosas (gaseous mixtures).

Grammatically, gasoso has the feminine form gasosa and the plural forms gasosos (masculine) and gasosas (feminine). For example, substâncias gasosas or gases gasosos are common constructions. The choice of form follows standard gender and number agreement with the noun it describes.

Etymology and usage: The adjective derives from gás (gas) with the suffix -oso; it has been part of Portuguese scientific vocabulary since the 19th century and mirrors the English word gaseous in meaning. In addition to its technical sense, gasoso can describe objects that contain or emit gas, such as balloons or canisters, though in formal contexts estado gasoso is preferred for describing the phase of matter.

See also: gás, estado gasoso, fase gasosa.