A host-specific lineage of a brood parasite species.^([W])
A legally defined unit of Roman society, being a collection of people related through a common ancestor by birth, marriage or adoption, possibly over many generations, and sharing the same nomen gentilicium.
A tribal subgroup whose members are characterized by having the same descent, usually along the male line.
A category in the classification of organisms, ranking below genus; a taxon at that rank.
A group of plants or animals having similar appearance.
A mineral with a unique chemical formula whose crystals belong to a unique crystallographic system.
Either of the two elements of the Eucharist after they have been consecrated.
Visible or perceptible presentation; appearance; something perceived.
A component part of compound medicine; a simple.
A particular type of atom, molecule, ion or other particle.
Type or kind. (Compare race.)
Coin, or coined silver, gold, or other metal, used as a circulating medium; specie.