Treinado

Treinado is a Portuguese adjective and past participle meaning "trained" or "having undergone training." It is used to describe a person, an animal, or an object that has completed a process of instruction, practice, or conditioning. The term derives from the verb treinar (to train).

Usage and agreement: Treinado agrees with gender and number, as in um cão treinado (a trained dog), uma equipe treinada (a trained team). It can refer to people who completed courses or programs, professionals with verified skills, or animals trained to perform tasks. In everyday language, it often conveys proficiency gained through repeated practice.

In technology and science: In machine learning and data science Portuguese uses phrases such as modelo treinado (trained model) and treinamento de modelos (training of models). A trained model is one that has been exposed to data to learn patterns and make predictions. Training considerations include data quality, quantity, and methods (supervised, unsupervised, reinforcement learning). The term is contrasted with concepts like treinamento ainda não concluído or modelo não treinado (untrained model).

Related terms: treinamento (training, the process), treinador (trainer, coach), treino (practice session or drill), treinável (trainable; capable of being trained). In many contexts, the nuance of treinabilidade (trainability) is used in engineering and AI discussions to indicate how easily a system can be taught new tasks.

See also: training, trained model, training data.