/ Dictionary / Index A althea: Meaning and Definition of Find definitions for: al•the•a Pronunciation: (al-thē'u), [key] — n. the rose of Sharon, Hibiscus syriacus. any plant belonging to the genus Althaea, of the mallow family, having lobed leaves and showy flowers in a spikelike cluster, including the hollyhocks and marsh mallows. Al•the•a Pronunciation: (al-thē'u), [key] — n. a female given name: from a Greek word meaning “wholesome.” Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: althea (Thesaurus) Althaea Althing Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language