1. Two vertical doors that meet in the middle of the door frame when closed

Derived forms: double doors

Type of: door

• regular polygon
• regular polyhedron
• regular recurrence
• regular tetrahedron
• regularisation
• regularise
• regularity
• regularization
• regularize
• regularly
• regulate
• regulated
• regulating
• regulation
• regulation time
• regulative
• regulator
• regulator gene
• regulatory
• regulatory agency
• regulatory authority
• regulatory gene
• regulatory offence
• regulatory offense
• regulo