HOMOLOGY n.
The correspondence or resemblance of substances belonging to the same type or series; a similarity of composition varying by a small, regular difference, and usually attended by a regular variation in physical properties; as, there is an homology between methane, CH4, ethane, C2H6, propane, C3H8, etc., all members of t…
HORNBILL n.
Any bird of the family Bucerotidæ, of which about sixty species are known, belonging to numerous genera. They inhabit the tropical parts of Asia, Africa, and the East Indies, and are remarkable for having a more or less horn-like protuberance, which is usually large and hollow and is situated on the upper side of the b…
HOUSEHOLD a.
Belonging to the house and family; domestic; as, household furniture; household affairs. Household bread, bread made in the house for common use; hence, bread that is not of the finest quality. [Obs.] -- Household gods (Rom. Antiq.), the gods presiding over the house and family; the Lares and Penates; hence, all object…