1. The quality of being infectious

Derived forms: infectiousnesses

• internal auditory vein
• internal carotid artery
• internal cerebral vein
• internal combustion
• internal control
• internal drive
• internal ear
• internal iliac artery
• internal iliac vein
• internal jugular vein
• internal maxillary artery
• internal medicine
• internal organ
• internal representation
• internal respiration
• internal revenue
• internal revenue agent
• Internal Revenue Service
• internal rhyme
• internal secretion
• internal spermatic artery
• internal-combustion engine
• internalisation
• internalise
• internality