1. A large drum with two heads; makes a sound of indefinite but very low pitch
   - bass drum

Type of: drum, membranophone, tympan

• semicircular canal
• semicolon
• semicoma
• semicomatose
• semiconducting
• semiconducting material
• semiconductive
• semiconductor
• semiconductor device
• semiconductor diode
• semiconductor unit
• semiconscious
• semiconsciousness
• semidark
• semidarkness
• semidesert
• semidetached
• semidiameter
• semiempirical
• semiepiphyte
• semifinal
• semifinalist
• semifluid
• semifluidity
• semiformal