QUICK ANSWER
"Medium well" is a phrase which is often translated as "tres cuartos", and "well done" is an interjection which is often translated as "bien hecho". Learn more about the difference between "medium well" and "well done" below.
medium well(
mi
-
di
-
uhm
wehl
)A phrase is a group of words commonly used together (e.g., once upon a time).
1. (culinary)
a. tres cuartos
I ordered a medium rare filet and you served me a medium well sirloin. I insist that the cooks make me what I ordered.Pedí un filete poco hecho y me sirvió un lomo de res de tres cuartos. Insisto en que los cocineros me preparen lo que pedí.
well done(
wehl
duhn
)An interjection is a short utterance that expresses emotion, hesitation, or protest (e.g., Wow!).
An adjective is a word that describes a noun (e.g., the big dog).
3. (culinary)
a. bien hecho
I want my steak well done, and I'll have mashed potatoes instead of fries.Quiero el bistec bien hecho, y quiero puré de papas en lugar de papas fritas.