bird·brain 
(bûrdbrān′)
(bûrdbrān′)n.
Slang
Slang
A person regarded as silly or stupid.
birdbrained′ adj.
- Olga Valentinovna
- olig-
- olig-
- oligarch
- oligarchic
- oligarchical
- oligarchy
- oligo-
- Oligocene
- oligochaete
- oligochaetous
- oligoclase
- oligodendrocyte
- oligodendroglia
- oligomer
- oligomeric
- oligomerization
- oligonucleotide
- oligophagous
- oligophagy
- oligopolistic
- oligopoly
- oligopsonistic
- oligopsony
- oligosaccharide