Deviation from the common rule; an irregularity; anything anomalous.
The angular distance of a planet from its perihelion, as seen from the sun. This is the true anomaly. The eccentric anomaly is a corresponding angle at the center of the elliptic orbit of the planet. The mean anomaly is what the anomaly would be if the planet's angular motion were uniform.
The angle measuring apparent irregularities in the motion of a planet.
Any deviation from the essential characteristics of a specific type.
A Republic without parties is a complete anomaly. The histories of all popular governments show absurd is the idea of their attempting to exist without parties. Franklin Pierce
We still think of a powerful man as a born leader and a powerful woman as an anomaly. Margaret Atwood
Sending a handwritten letter is becoming such an anomaly. It's disappearing. My mom is the only one who still writes me letters. And there's something visceral about opening a letter - I see her on the page. I see her in her handwriting. Steve Carell
Poverty is an anomaly to rich people; it is very difficult to make out why people who want dinner do not ring the bell. Walter Bagehot
Through every rift of discovery some seeming anomaly drops out of the darkness, and falls, as a golden link into the great chain of order. Edwin Hubbel Chapin