- (in prescriptions) at bedtime.
Origin of h.d.1
From the New Latin word hōra dēcubitūs
- heavy duty.
- HildaH.D., 1886–1961, U.S. poet.
- James Harold,1896–1993, U.S. aviator and general.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- Hilda. known as H.D. 1886–1961, US imagist poet and novelist, living in Europe
- hora decubitus (before sleep, at bedtime)