1. Someone being or trying to be irritatingly clever; a smart alec
   - smart-ass [N. Amer], smart-arse [Brit, Cdn], smartypants, smarty, smartie

Derived forms: bright sparks

• external maxillary artery
• external modem
• external nasal vein
• external oblique muscle
• external organ
• external orifice
• external respiration
• external storage
• external-combustion engine
• externalisation
• externalise
• externalism
• externality
• externalization
• externalize
• externally
• exteroception
• exteroceptive
• exteroceptor
• exterritorial
• extinct
• extinction
• extinction angle
• extinguish
• extinguishable