Term: ice age: any period of time during which glaciers covered a large part of the earth's surface
Broader: period: a unit of geological time during which a system of rocks formed | Unrelated: dpt vaccine: abbreviation for combination vaccine against diphtheria and pertussis (whooping cough) and tetanus toxoids; usually given in a series of injections in early childhood
Broader: period: a unit of geological time during which a system of rocks formed | Unrelated: screening: testing objects or persons in order to identify those with particular characteristics
Broader: period: a unit of geological time during which a system of rocks formed | Unrelated: water right: right of access to water
Broader: period: a unit of geological time during which a system of rocks formed | Unrelated: quorum: a gathering of the minimal number of members of an organization to conduct business
Broader: period: a unit of geological time during which a system of rocks formed | Unrelated: petechia: a minute red or purple spot on the surface of the skin as the result of tiny hemorrhages of blood vessels in the skin (as in typhoid fever)
Broader: period: a unit of geological time during which a system of rocks formed | Unrelated: trap-door spider: American spider that constructs a silk-lined nest with a hinged lid
Broader: period: a unit of geological time during which a system of rocks formed | Unrelated: mentality: a habitual or characteristic mental attitude that determines how you will interpret and respond to situations
Broader: period: a unit of geological time during which a system of rocks formed | Unrelated: anal stage: (psychoanalysis) the second sexual and social stage of a child's development during which bowel control is learned
Broader: period: a unit of geological time during which a system of rocks formed | Unrelated: altaic: any member of the peoples speaking a language in the Altaic language group
Broader: period: a unit of geological time during which a system of rocks formed | Unrelated: thalictrum: widely distributed genus of perennial herbs: meadow rue