hydrid

1. (astronomy) Any of the meteors in a meteor shower that appears to come from the constellation Hydra.Examples: "a similarly bright meteor at 12ʰ 33ᵐ was probably an α Hydrid"; "The radiant analysis that included orbits from the Croatian Meteor Network Catalogues of Orbits 2007 to 2010 plus the orbits from the SonotaCo catalogues for 2007 to 2011 revealed a possible new Hydrid stream with radiant running parallel to, but distinct from, the sigma Hydrids."