orbital

orbital

Qui concerne le trajet d’une planète, d’une lune ou d’un engin spatial autour d’un autre objet dans l’espace.

En anglais simple : Connected with the path of a planet, moon, or spacecraft around another object in space.

• The satellite reached its orbital position.
• Earth’s orbital period is about one year.
• Engineers adjusted the spacecraft’s orbital speed.

Expressions courantes : orbital path, orbital speed, orbital period, orbital motion

périphérique

Qui contourne une ville par l’extérieur au lieu de traverser son centre.

En anglais simple : Going around the outside of a town or city, rather than through its center.

• The orbital road carries traffic around the city.
• We took an orbital route to avoid the center.
• An accident closed part of the orbital motorway.

Expressions courantes : orbital road, orbital motorway, orbital route

orbitale

Description mathématique de l’énergie d’un électron et de sa position probable dans un atome ou une molécule.

En anglais simple : A mathematical description of an electron’s energy and where it is likely to be in an atom or molecule.

• The electron occupies an orbital with low energy.
• Two electrons can share the same orbital.
• The diagram shows the shapes of several atomic orbitals.

Expressions courantes : atomic orbital, molecular orbital, occupied orbital