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In an orthodox manner; with soundness of faith. Sir W. Hamilton.

The quality or state of being orthodox; orthodoxy. Waterland.

sed to heterodoxy or to heresy. Basil himself bears full and clear testimony to Gregory's orthodoxy. Waterland.

Of or pertaining to orthodromy.

The art of sailing in a direct course, or on the arc of a great circle, which is the shortest distance between any two points on the surface of the globe; great-circle sailing; orthodromy.

The act or art of sailing on a great circle.

Of or pertaining to orthoëpy, or correct pronunciation. -- Or`tho*ëp"ic*al*ly, adv.

One who is skilled in orthoëpy.

The art of uttering words corectly; a correct pronunciation of words; also, mode of pronunciation.

Direct fertilization in plants, as when the pollen fertilizing the ovules comes from the stamens of the same blossom; -- opposed to heterogamy.

Orthognathous.

The quality or state of being orthognathous. Huxley.

Having the front of the head, or the skull, nearly perpendicular, not retreating backwards above the jaws; -- opposed to Ant: prognathous. See Gnathic index, under Gnathic.

A rectangular figure.

Right-angled; rectangular; as, an orthogonal intersection of one curve with another. Orthogonal projection. See under Orthographic.

Perpendicularly; at right angles; as, a curve cuts a set of curves orthogonally.

An orthographic projection, sometimes partly in section, esp. of a building.

One versed in orthography; one who spells words correctly.

Of or pertaining to orthography, or right spelling; also, correct in spelling; as, orthographical rules; the letter was orthographic.

In an orthographical manner: