Portuguese to English Dictionary (Dicionário Português-Inglês)

Quarterly

Occurring, done, produced, or appearing once every quarter of a year or every three months.

Radar-Screen

A display device that shows the position and movement of objects detected by radar.

Radiant Heat Transfer

The process by which heat energy is emitted and transferred through electromagnetic radiation.

Radiation Exchange

The process by which energy in the form of radiation is transferred between bodies or systems.

Radiation Heat Exchange

The process of transferring heat energy through electromagnetic radiation between bodies at different temperatures.

Radiative Heat Transfer

The process by which heat energy is emitted as electromagnetic radiation and absorbed by another body.

Radio Telephone

A communication device that transmits and receives sound via radio waves.

Radio-transmitter

A device that converts electrical energy into radio waves for transmission.

Recurring theme

An idea, subject, or motif that persistently reappears throughout a literary work, artistic creation, or discussion.

Reflecting telescope

An optical telescope that uses a single or a combination of curved mirrors that reflect light and form an image.

Reflector telescope

An optical telescope that uses a single curved mirror or a combination of curved mirrors that reflect light and form an image.

Refuse-Crusher

A machine or device used to crush or compact refuse or waste materials.