imaginary

imaginaire

Qui existe seulement dans la pensée ou l’imagination, sans réalité concrète.

En anglais simple : Something that exists only in your thoughts, rather than in the real world.

• She has an imaginary friend.
• The story takes place in an imaginary city.
• Were those sounds real or imaginary?

Synonymes : made-up, unreal, fictitious

Contraires : real

Expressions courantes : imaginary friend, imaginary world, imaginary creature

imaginaire

Qualifie un nombre obtenu en multipliant la racine carrée de moins un par un nombre réel.

En anglais simple : Describes a number made by multiplying the square root of minus one by a real number.

• The imaginary unit is written as i.
• This equation has two imaginary roots.
• We plotted the imaginary part on the vertical axis.

Contraires : real

Expressions courantes : imaginary number, imaginary unit, imaginary part