Term: hardening: the act of making something harder (firmer or tighter or more compact)
Broader: event: something that happens at a given place and time | Unrelated: mission bells: herb of northwestern America having green-and-purple bell-shaped flowers
Broader: event: something that happens at a given place and time | Unrelated: pitcher: an open vessel with a handle and a spout for pouring
Broader: event: something that happens at a given place and time | Unrelated: genus stevia: genus of shrubs and herbs of tropical and warm Americas
Broader: event: something that happens at a given place and time | Unrelated: christmas: a Christian holiday celebrating the birth of Christ; a quarter day in England, Wales, and Ireland
Broader: event: something that happens at a given place and time | Unrelated: neck: a narrow part of an artifact that resembles a neck in position or form
Broader: event: something that happens at a given place and time | Unrelated: higher cognitive process: cognitive processes that presuppose the availability of knowledge and put it to use
Broader: event: something that happens at a given place and time | Unrelated: clade: a group of biological taxa or species that share features inherited from a common ancestor
Broader: event: something that happens at a given place and time | Unrelated: superficies: outer surface of an area or a body
Broader: event: something that happens at a given place and time | Unrelated: ketone group: a group having the characteristic properties of ketones
Broader: event: something that happens at a given place and time | Unrelated: haversian canal: any of the many tiny canals that contain blood vessels and connective tissue and that form a network in bone