vs
QUICK ANSWER
"Espumas" is a form of "espumar", a transitive verb which is often translated as "to skim". "Terciopelo" is a noun which is often translated as "velvet". Learn more about the difference between "terciopelo" and "espumas" below.
el terciopelo()
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
1. (material)
A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
a. fer-de-lance
La mordida de una terciopelo es extremadamente peligrosa.The bite of a fer-de-lance is extremely dangerous.
espumar()
A transitive verb is a verb that requires a direct object (e.g., I bought a book.).
An intransitive verb is one that does not require a direct object (e.g., The man sneezed.).
a. to foam
Esa forma de tirar la cerveza hace que espume demasiado.That way of pouring the beer makes it foam too much.