extra current
extra-essential
extra high tension
extra large scale integration (ELSI)
extra-legal
extra-marital
extra-parliamentary
extra-physical
extra-solar
extra-spectral
extra-stomachal
extracecal
extracellular
extracranial
extract
extractable
extractible
extraction
extractive
extractively
extractor
extracurricular
extraditable
extradite
extradition
extrados
extradotal
extradural
extraembryonic
extraenteric