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Mills cross

American

noun

a type of radio telescope consisting of two arrays of antennas perpendicular to each other.

Etymology

Origin of Mills cross

First recorded in 1960–65; named after Bernard Y. Mills (1920–2011), Australian astronomer

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.