envelope

S2 W2

BrE /ˈenvələʊp/ AmE /ɛnˈvɛloʊp/

noun en → es

1 WRITING [singular] A2

a flat paper container for a letter or document

sobre, sobre postal

  • an envelope for something

Collocations envelope for a letter · sealed envelope

  • She put the letter in an envelope.

    Ella puso la carta en un sobre.

2 PACKAGE [singular] B1

a flat paper container for a small package or gift

sobre, envoltorio

  • an envelope for something

Collocations envelope for a gift card · gift envelope

  • He wrapped the present in an envelope.

    Él envolvió el regalo en un sobre.

3 ELECTRONIC [singular] B2

an electronic message sent from one computer to another, containing text and/or files

correo electrónico, mensaje de correo electrónico

  • send/receive an email

Collocations email from a friend · read emails

  • She received an envelope from her boss.

    Ella recibió un correo electrónico de su jefe.

4 BIOLOGY [singular] C1

a thin layer of tissue that covers a part of the body, such as an organ or nerve

envoltura, tegumento

  • an envelope around something

Collocations envelope of the heart · nerve envelope

  • The doctor examined the nerve envelope.

    El médico examinó el tegumento del nervio.

5 CHEMISTRY [singular] C1

a substance that surrounds and protects another substance, often used in chemical reactions or as a coating

capa protectora, envoltura química

  • an envelope around something

Collocations chemical envelope of the molecule · protective envelope

  • The chemical reaction was contained within an envelope.

    La reacción química se contuvo dentro de una capa protectora.

6 ART [singular] C1

a thin layer of paint or other material applied to a surface, often as part of an artistic technique

capa de pintura, envoltura artística

  • an envelope around something

Collocations painting envelope · artistic envelope

  • The artist applied an envelope to the canvas.

    El artista aplicó una capa de pintura al lienzo.

7 MUSIC [singular] C1

the range of sounds that a musical instrument can produce, or the quality of sound produced by an instrument or voice

registro de sonido, envoltura acústica

  • the envelope of something

Collocations sound envelope of the guitar · voice envelope

  • The violin has a beautiful sound envelope.

    El violín tiene un registro de sonido hermoso.

8 TECHNOLOGY [singular] C1

a protective layer or covering in electronic devices, often used to shield components from environmental damage

capa protectora, envoltura tecnológica

  • an envelope around something

Collocations electronic envelope of the circuit · protective envelope in a device

  • The electronic component was encased in an envelope.

    El componente electrónico estaba encapsulado en una capa protectora.