ALL meanings of halley's comet
Halley's comet
H h - noun halley's comet a comet with a period averaging 76 years. In this century it was visible to terrestrial observers just before and after reaching perihelion in 1910 and again in 1986. 1
- noun halley's comet a comet revolving around the sun in a period of about 76 years, last seen in 1985–86 0
- noun halley's comet a famous comet, last seen in 1986, whose reappearance about every 76 years was predicted by Halley 0