a depressed state felt by some parents after their children have left home.
(informal) a condition, often involving depression, loneliness, etc, experienced by parents living in a home from which the children have grown up and left
noun 1. . [Arabic roo b ahl khah-lee; English roo b al kah-lee] /Arabic ˌrʊb ɑl ˈxɑ li; English ˌrʊb æl ˈkɑ li/ noun 1. a desert in S Arabia, N of Hadhramaut and extending from Yemen to Oman. About 250,000 sq. mi. (647,500 sq. km). noun 1. another name for Rub` al Khali
- Empty set
empty set (ěmp’tē) Mathematics The set that has no members or elements.
noun 1. (especially in Chinese grammar) a word or morpheme that has no lexical meaning and that functions as a grammatical link or marker, rather than as a contentive.
[em-pee-ee-muh, -pahy-] /ˌɛm piˈi mə, -paɪ-/ noun, Pathology. 1. a collection of pus in a body cavity, especially the pleural cavity. /ˌɛmpaɪˈiːmə/ noun (pl) -emata (-ˈiːmətə), -emas 1. a collection of pus in a body cavity, esp in the chest empyema em·py·e·ma (ěm’pī-ē’mə) n. pl. em·py·e·ma·ta (-mə-tə) The presence of pus in a body cavity, […]