Definition of junctions:
(n) :
A place where two things meet, especially where two roads meet.
(n) :
(rail transport) A place where two or more railways or railroads meet.
(n) :
The act of joining, or the state of being joined.
(n) :
(electronics) electrical junction: a point or area where multiple conductors or semiconductors make physical contact.
(n) :
The boundary between two physically different materials, especially between conductors, semiconductors, or metals.
(n) :
(nautical) The place where a distributary departs from the main stream.