interlunation

interlunation

(ˌɪntəlʊˈneɪʃən) n (Astronomy) the period between the old and new moons during which the moon is invisible. See new moon ˌinterˈlunar, ˌinterˈlunary adj

interlunation

the period between the old moon and the new when the moon is invisible each month. — interlunar, adj.See also: Astronomy