[1] : The Collaborative International Dictionary of English v.0.48

magnetic equator \magnetic equator\ n.
   an imaginary line paralleling the equator where a magnetic
   needle has no dip, the dipping needle being horizontal;
   called also aclinic line.
   wordnet 1.5
see also:
aclinic line 

[2] : WordNet (r) 2.0

aclinic line
     n : an imaginary line paralleling the equator where a magnetic
         needle has no dip syn: magnetic equator
see also:
magnetic equator 

Aclinic Line >> A Words
Aclinic Line, definition of term: Aclinic Line
aclinic+line_pag1.html

Aclinic >> A Words
Aclinic, definition of term: Aclinic
aclinic_pag1.html

Bar Line >> B Words
Bar Line, definition of term: Bar Line
bar+line_pag1.html

Agate Line >> A Words
Agate Line, definition of term: Agate Line
agate+line_pag1.html

Air Line >> A Words
Air Line, definition of term: Air Line
air+line_pag1.html