(ˌ)prōˌlȯŋˈgāshən prəˌ- also -läy- noun
( -s )
Etymology: Middle French, from Late Latin prolongation-, prolongatio, from prolongatus + Latin -ion-, -io -ion
1.
a. : an extension or lengthening in time or duration
the indefinite prolongation of the Korean truce talks — Joseph & Stewart Alsop
b. : the continuation or protraction of a spoken syllable or sound
the principle of prolongation — H.W.Smyth
2. : an expansion or continuation in extent, scope, or range
a northwesterly prolongation into the plain of Lancastria — L.D.Stamp
a prolongation of ourselves — Time Literary Supplement
water and plants … became a part and prolongation of the structures conceived by the architect — José Gómez-Sicre
treats literature … as a prolongation (of the past) rather than as an original creation — Wallace Fowlie