[pleyn-air; French ple-ner] /ˌpleɪnˈɛər; French plɛˈnɛr/
pertaining to a manner or style of painting developed chiefly in France in the mid-19th century, characterized by the representation of the luminous effects of natural light and atmosphere as contrasted with the artificial light and absence of the sense of air or atmosphere associated with paintings produced in the studio.
designating a painting executed out of doors and representing a direct response to the scene or subject in front of the artist.
(of a painting) having the qualities of air and natural light.
/ˌpleɪnˈɛə; French plɛnɛr/
of or in the manner of various French 19th-century schools of painting, esp impressionism, concerned with the observation of light and atmosphere effects outdoors
1894, from French phrase en plein air, literally “in the open air.” The style developed among French impressionists c.1870.
1. variant of . combining form 1. a variant of plio- also pleo-, word-forming element meaning “more,” from comb. form of Greek pleion “larger, greater in quantity, the more part, very many” (comp. of polys “much”), from PIE *ple- (cf. Latin plere “to fill,” plebes, “the populace, the common people;” Greek plethein “be full,” pleres […]
/ˈplaɪəʊˌsiːn/ adjective, noun 1. a variant spelling of Pliocene
[plahy-uh-tak-see] /ˈplaɪ əˌtæk si/ noun, Botany. 1. an increase in the normal number of parts.
[plahy-o-truh-pee] /plaɪˈɒ trə pi/ noun, Genetics. 1. the phenomenon of one gene being responsible for or affecting more than one phenotypic characteristic. n. 1921, from German pleiotrop (1910), from Greek pleion “greater in quantity, the more part, very many,” (see pleio-) + trope “turn, turning” (see trope). Related: Pleiotropic; pleiotropism.