1. Fulness; completion; whence, perfection.
They as they feasted had their fill,
For a full complement of all their ill.
2. Full quantity or number; the quantity or number limited; as, a company has its complement of men; a ship has its complement of stores.
3. That which is added, not as necessary, but as ornamental; something adventitious to the main thing; ceremony. [See Compliment.]
garnished and decked in modest complement
4. In geometry, what remains of the quadrant of a circle, or of ninety degrees, after any arch has been taken from it. Thus if the arch taken is thirty degrees, its complement is sixty.
5. In astronomy, the distance of a star from the zenith.
6. Arithmetical complement of a logarithm, is what the logarithm wants of 10, 000, 000.
7. In fortification, the complement of the curtain is that part in the interior side which makes the demigorge.