companion star
Americannoun
Etymology
Origin of companion star
First recorded in 1775–85
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The newly detected wake provides the strongest proof yet that a companion star is actively disturbing the atmosphere of this red supergiant.
From Science Daily ● Jan. 10, 2026
These long-term observations revealed the effects of a companion star that had previously been suspected but not confirmed.
From Science Daily ● Jan. 10, 2026
The researchers also studied Gaia BH3, another black hole system with an even stranger companion star.
From Science Daily ● Dec. 26, 2025
The team believes that the cocoon's egg-like shape could be explained by either the star's shedding or by the influence of a yet-undiscovered companion star.
From Science Daily ● Nov. 21, 2024
"Except that we saw that companion star when we stopped back there, half an hour ago," said Fuller.
From Islands of Space by Campbell, John Wood
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
