of a head injury: having the skull intact : not marked by fracture or penetration of the skull
3
a
: forming a self-contained unit allowing no additions
closed association
b(1)
: traced by a moving point that returns to an arbitrary starting point
closed curve
also: so formed that every plane section is a closed curve
closed surface
(2)
: characterized by mathematical elements that when subjected to an operation produce only elements of the same set
the set of whole numbers is closed under addition and multiplication
(3)
: containing all the limit points of every possible subset
a closed interval contains its endpoints
c
: characterized by continuous return and reuse of the working substance
a closed cooling system
d
of a racecourse: having the same starting and finishing point
4
a
: confined to a few
closed membership
b
: excluding participation of outsiders or witnesses : conducted in strict secrecy
c
: rigidly excluding outside influence
a closed mind
5
: ending in a consonant
closed syllable
Example Sentences
He looked at me through half-closed eyes. The store is closed for lunch between 1 and 2 p.m. The beach is closed this time of night. These restrooms are closed for cleaning. The chairman declared the discussion closed and allowed no further speeches.
Recent Examples on the WebKeeping these injustices hidden behind closed doors is detrimental to change and therefore progress. Pringl Miller, STAT, 11 Sep. 2022 Something powerful may begin happening at any moment -- probably behind closed doors.Chicago Tribune, 10 Sep. 2022 Elendil catalogs the rabid construction of arms and warships, whispered denunciations, disappearances, torture behind closed doors. John Garth, Smithsonian Magazine, 9 Sep. 2022 In royal transitions past, this ritual occurred behind closed doors, making tomorrow's broadcast all the more momentous. Janine Henni, Peoplemag, 9 Sep. 2022 Once people are playing, though, scenes can unfold behind closed doors or in the dark forest.WIRED, 2 Sep. 2022 Her trials have been held behind closed doors in the capital, Naypyitaw, and the junta's statements on the proceedings have been limited. Reuters, CNN, 2 Sep. 2022 Officials still respond to court deadlines during this period, and grand juries — which operate behind closed doors — can still convene in potentially high-profile political cases. Perry Stein, Anchorage Daily News, 31 Aug. 2022 The Politburo announced on Tuesday the start date for the congress, which typically lasts about a week and takes place mostly behind closed doors at the Great Hall of the People on the western side of Tiananmen Square in central Beijing. Reuters, NBC News, 31 Aug. 2022 See More