ESN

1. Educationally subnormal, formerly used to describe people with special educational needs
2. Electronic serial number, a unique, unchangeable number embedded in a mobile phone to identify it

• zoophytology
• zooplankton
• zooplanktons
• zooplastic
• zooplasty
• zoopsychologies
• zoopsychology
• zoos
• zooscopic
• zooscopies
• zooscopy
• zoosperm
• zoospermatic
• zoospermium
• zoospermiums
• zoosperms
• zoosporangia
• zoosporangium
• zoospore
• zoospores
• zoosporic
• zoosporous
• zootaxies
• zootaxy
• zootechnics