QUICK ANSWER
"Reflejo" is a form of "reflejo", an adjective which is often translated as "reflex". "Reflexión" is a noun which is often translated as "reflection". Learn more about the difference between "reflexión" and "reflejo" below.
la reflexión(
rreh
-
flehk
-
syohn
)A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
a. reflection
El taller dará un espacio para la reflexión sobre el trabajo que hacemos.The workshop will provide a space for reflection on the work that we do.
b. thought
Después de una larga reflexión decidí darle una nueva oportunidad a mi matrimonio.After much thought I decided to give my marriage a second chance.
2. (advice)
a. thought
El profesor hizo unas reflexiones sobre nuestro futuro como profesionales.The teacher gave us a few thoughts on our future as professionals.
3. (physics)
a. reflection
Sobre una superficie lisa se aprecia perfectamente la reflexión de la luz.On a flat surface you can clearly see the reflection of the light.
reflejo(
rreh
-
fleh
-
hoh
)An adjective is a word that describes a noun (e.g., the big dog).
1. (automatic)
a. reflex
Me duele la pierna, pero el médico dice que es un dolor reflejo de mi espalda.My leg hurts, but the doctor says it's reflex pain from my back.
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
3. (physics)
a. reflection
Inclina un poco más el espejo para que puedas ver tu reflejo en él.Lean the mirror forward a little bit so you can see your reflection in it.
a. reflection
La crisis actual es un reflejo de las políticas económicas fallidas.The current crisis is a reflection of failed economic policies.
5. (physiology)
a. reflex
El bebé tiene problemas para alimentarse porque no ha desarrollado el reflejo de succión.The baby has feeding problems because he has not developed his sucking reflex.
a. highlights
No quiero teñirme todo el pelo, sino hacerme solo unos reflejos.I don't want to dye all of my hair, but just get a few highlights.
los reflejos
A plural noun indicates that there is more than one person, place, thing, or idea.
8. (physiology)
a. reflexes
Gracias a sus buenos reflejos, Carlos frenó a tiempo y evitó un accidente.Thanks to his good reflexes, Carlos hit the brakes on time to avoid an accident.
