portcullis /pōrt- or pört-kulˈis/

1. A grating that can be let down to close a gateway of a castle, fortress, etc
2. A lattice (heraldry)
3. One of the pursuivants of the English College of Heralds
4. An Elizabethan silver halfpenny with a portcullis on the reverse

To obstruct, as with a portcullis

• genealogising
• genealogist
• genealogists
• genealogize
• genealogized
• genealogizes
• genealogizing
• genealogy
• gene amplification
• gene bank
• gene banks
• gene flow
• gene flows
• gene frequencies
• gene frequency
• gene locus
• gene mapping
• gene pool
• gene pools
• genera
• generable
• general
• general anaesthetic
• General Assembly
• generalate