Hel·mand 
(hĕlmənd)
(hĕlmənd) A river, about 1,150 km (715 mi) long, rising in the Hindu Kush and flowing southwest across Afghanistan to a marshy lake on the Iranian border.
- nuclein
- nucleinic
- nucleo-
- nucleocapsid
- nucleohistone
- nucleoid
- nucleolar
- nucleolate
- nucleolated
- nucleolus
- nucleon
- nucleonic
- nucleonics
- nucleon number
- nucleophile
- nucleoplasm
- nucleoplasmatic
- nucleoplasmic
- nucleoprotein
- nucleoside
- nucleoside analog
- nucleoside reverse transcriptase inhibitor
- nucleosomal
- nucleosome
- nucleosynthesis