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

• somatic cell hybrid
• somatic cell hybrids
• somatic cells
• somatic mutation
• somatic mutations
• somatism
• somatisms
• somatist
• somatists
• somatogenic
• somatologic
• somatological
• somatologies
• somatology
• somatomedin
• somatoplasm
• somatoplasms
• somatopleure
• somatopleures
• somatosensory
• somatostatin
• somatostatins
• somatotensic
• somatotonia
• somatotonias