:10
:09
:08
:07
:06
:05
:04
:03
:02
:01
| the offspring of a zebra and a donkey. |
| a chattering or flighty, light-headed person. |
official of·fi·cial (ə-fĭsh'əl)
adj.
Authorized by or contained in the U.S. Pharmacopoeia or National Formulary. Used of drugs.
unofficial un·of·fi·cial (ŭn'ə-fĭsh'əl)
adj.
Of or being a drug that is not listed in the United States Pharmacopeia or the National Formulary.