What is the meaning of Ortho-?
Right angle, perpendicular.
Proper, righteous, pure.
To correct or fix.
Same, from the same.
Normal, ordinary.
Straight in form.
Orthorhombic crystal structure.
In isomeric benzene derivatives, having the two substituents in adjacent (1,2) positions (compare meta- and para-).
Having an extra proportion of water.
Independent, separate.
Original, primary.
Parallel lines or columns.
Of any molecule of the form X2 in which the two nuclei have parallel spin.
Vertical or upright in movement.
Igneous.
ortho-
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