QUICK ANSWER
"Spayed" is a form of "spay", a transitive verb which is often translated as "esterilizar". "Neutered" is a form of "neuter", an adjective which is often translated as "neutro". Learn more about the difference between "spayed" and "neutered" below.
spay(
spey
)A transitive verb is a verb that requires a direct object (e.g., I bought a book.).
1. (general)
a. esterilizar (female animal)
Getting your dog or cat spayed is the responsible thing to do.Esterilizar a tu perra o gata es actuar de manera responsable.
neuter(
nu
-
duhr
)An adjective is a word that describes a noun (e.g., the big dog).
2. (sterilized)
A noun is a word referring to a person, animal, place, thing, feeling, or idea (e.g., man, dog, house).
4. (grammar)
a. el neutro (M)
(m) means that a noun is masculine. Spanish nouns have a gender, which is either feminine (like la mujer or la luna) or masculine (like el hombre or el sol).
The teacher asked the class which of the three pronouns is the neuter in English.El maestro preguntó a la clase cuál de los tres pronombres es el neutro en inglés.
5. (animal)
a. el insecto asexuado (M)
(m) means that a noun is masculine. Spanish nouns have a gender, which is either feminine (like la mujer or la luna) or masculine (like el hombre or el sol).
The existence of neuters in bee colonies presents a challenge for the theory of evolution.La existencia de insectos asexuados en colonias de abejas supone un desafío para la teoría de la evolución.
A transitive verb is a verb that requires a direct object (e.g., I bought a book.).
