An instrument for taking the declination or angle which a plane makes with the horizontal plane. / (obsolete) A dissenter.

plural of declinator

Downward movement, fall. / A sloping downward, e.g. of a hill or road. / A weakening. / A reduction or diminution of activity. / The act of declining or refusing something.

(intransitive) To move downwards, to fall, to drop. / (intransitive) To become weaker or worse. / (transitive) To bend downward; to bring down; to depress; to cause to bend, or fall.

One who declines. / (finance) A company's stock which is falling in price.

plural of decliner

At a given point, the angle between magnetic north and true north. / At a given point, the angle between the line connecting this point with the geographical center of the earth and the equatorial plane.

present participle and gerund of decline

decline

Bent downward or aside. / (botany) Bending downward in a curve; declined.