1. Occurring every six months or during every period of six months
   - semestral

See also: periodic, periodical, semester

• bacteriophagous
• bacteriostasis
• bacteriostat
• bacteriostatic
• bacterise
• bacterium
• bacterize
• bacteroid
• Bacteroidaceae
• bacteroidal
• Bacteroides
• Bactrian camel
• baculiform
• baculovirus
• bad
• bad block
• bad blood
• bad check
• bad cheque
• bad debt
• bad egg
• bad fairy
• bad faith
• bad guy
• bad hair day