WordReference Random House Unabridged Dictionary of American English © 2026
al•the•a
(al thē′ə),USA pronunciation n.
Al•the•a (al thē′ə),USA pronunciation n.
- Plant Biologythe rose of Sharon, Hibiscus syriacus.
- Plant Biologyany 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.
- Greek althaíā marsh mallow
- Neo-Latin, Latin althaea
- 1660–70
Al•the•a (al thē′ə),USA pronunciation n.
- a female given name: from a Greek word meaning "wholesome.''
'althea' also found in these entries (note: many are not synonyms or translations):