guinea pig

cobaya, conejillo de Indias

Animal pequeño de patas cortas, orejas redondeadas y sin cola, que suele tenerse como mascota.

En inglés sencillo: A small animal with short legs, rounded ears, and no tail, often kept as a pet.

• Our guinea pig loves carrots.
• She cleaned the guinea pig’s cage.
• Do guinea pigs need fresh hay every day?

Sinónimos: cavy

Expresiones frecuentes: pet guinea pig, guinea pig cage, feed a guinea pig

conejillo de Indias, sujeto de prueba

Persona o animal con el que se prueba algo nuevo para observar sus efectos.

En inglés sencillo: A person or animal used to test something new and see what happens.

• I was her guinea pig for a new recipe.
• The volunteers became guinea pigs in a medical trial.
• Would you be a guinea pig for our new software?

Cómo se usa: guinea pig for something (I was the guinea pig for her new recipe.); use someone as a guinea pig (They used volunteers as guinea pigs.)

Sinónimos: test subject, experimental subject

Expresiones frecuentes: human guinea pig, a willing guinea pig, guinea pig for something