observadas

Observadas is the feminine plural form of the past participle of observar in Spanish. It functions as an adjective meaning “observed” or as a passive participle, and it can also be used as a noun phrase referring to the observed entities when the noun is omitted or understood from context.

Usage and grammar: Observadas agrees in gender and number with the noun it modifies, typically appearing with feminine plural nouns such as zonas, muestras, entidades, or variables. It can appear in attributive position (las zonas observadas) or in predicative constructions (las zonas fueron observadas). It is common in scientific, academic, and formal writing to describe data, phenomena, or subjects that have been examined or recorded.

Common contexts: In scientific research, you may encounter phrases like las zonas observadas, las muestras observadas, or las entidades observadas, to denote elements that have been inspected or measured. In social sciences, one might refer to las variables observadas or las respuestas observadas to indicate the items that were collected through study. In general prose, observed phenomena or conditions can be described as observadas when the feminine noun is present.

Etymology and related forms: Observadas comes from observar, via the feminine plural past participle suffix -adas. Related forms include observable (observable in English membranes), observador/observadora (observer), observación (observation), and the masculine plural observados.

See also: observar, observación, observatorio, observador, concordancia de adjetivos.