1966 Nanohenry, one billionth of a henry.
1994 37 429/1 A device that can measure the inductance of coils from several nanohenry to tens of henry.
1997 21 July 68/3 In circuits using six parallel Sanyo MV-GX series 16-V 1,000-microfarad capacitors,..the ESL is near 5 to 6 nanohenries.