eclair

UK: /eɪˈklɛə/

WordReference Random House Learner's Dictionary of American English © 2025

é•clair /eɪˈklɛr, ɪˈklɛr, ˈeɪklɛr/   n. [countable]

1. Food an elongated pastry filled with custard or whipped cream and usually covered with frosting.

WordReference Random House Unabridged Dictionary of American English © 2025

é•clair  (ā klâr′, i klâr′, ā′klâr), n. 

1. a finger-shaped cream puff, filled with whipped cream, custard, or pastry cream, often coated with icing.

• Vulgar Latin *exclariāre, for Latin exclārāre, equivalent. to ex- ex-¹ + clārāre to make bright, derivative of clārus clear
• French: literally, lightning (flash), Old French esclair, noun, nominal derivative of esclairier to light, flash
• 1860–65

Collins Concise English Dictionary © HarperCollins Publishers::

éclair / eɪˈklɛə ɪˈklɛə/ noun

1. a finger-shaped cake of choux pastry, usually filled with cream and covered with chocolate

Etymology: 19th Century: from French, literally: lightning (probably so called because it does not last long), from éclairer, from Latin clārāre to make bright, from clārus bright