syzygy

Definition of Syzygy in English :

1. syzygy

the straight line configuration of 3 celestial bodies (as the sun and earth and moon) in a gravitational system

WordNet Lexical Database for English. Princeton University. 2010.

Syzygy

noun plural -gies

1.

either of the two positions (conjunction or opposition) of a celestial body when sun, earth, and the body lie in a straight line

the moon is at syzygy when full

2.

(in classical prosody) a metrical unit of two feet

3. rare

any pair, usually of opposites

4. biology

the aggregation in a mass of certain protozoans, esp when occurring before sexual reproduction

nounWord forms: plural ˈsyzygies

1.

a pair of things, esp. a pair of opposites

2. Astronomy; Rare

either of two opposing points in the orbit of a celestial body, specif. of the moon, at which it is in conjunction with or in opposition to the sun

3. Classical Prosody

a measure of two feet, as a dipody

n. pl. syz·y·gies

1. Astronomy

a. Either of two points in the orbit of a solar system body where the body is in opposition to or in conjunction with the sun.

b. Either of two points in the orbit of the moon when the moon lies in a straight line with the sun and Earth.

c. The configuration of the sun, the moon, and Earth lying in a straight line.

2. The combining of two feet into a single metrical unit in classical prosody.