Something, such as an awning or a billed cap, that is used or worn as a protection from the sun's rays.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "sunshade" in a sentence
"But should Earth be faced with an abrupt climate crisis, a space sunshade is a technically feasible solution."
""Oh, you may make fun," said Anna, snapping open the frothy thing she called a sunshade, "but you don't know how I lie awake nights, shuddering lest Lena grow up a near-sighted girl with no color and serious views.""
"To some, such as Wigley, a sunshade could be a rational strategy to buy time for the long labor of converting to a carbon-neutral energy supply."