Term: past master: someone who has long and thorough experience in a given activity
Broader: expert: a person with special knowledge or ability who performs skillfully | Unrelated: chain printer: an impact printer that carries the type slugs by links of a revolving chain
Broader: expert: a person with special knowledge or ability who performs skillfully | Unrelated: tubercle bacillus: cause of tuberculosis
Broader: expert: a person with special knowledge or ability who performs skillfully | Unrelated: tick: a light mattress
Broader: expert: a person with special knowledge or ability who performs skillfully | Unrelated: composer: someone who composes music as a profession
Broader: expert: a person with special knowledge or ability who performs skillfully | Unrelated: systems analysis: analysis of all aspects of a project along with ways to collect information about the operation of its parts
Broader: expert: a person with special knowledge or ability who performs skillfully | Unrelated: zona pellucida: thick membrane around the mammalian ovum; can be penetrated by one sperm in the fertilization process; usually remains around the fertilized egg until it is implanted in the wall of the uterus
Broader: expert: a person with special knowledge or ability who performs skillfully | Unrelated: bluing: a process that makes something blue (or bluish)
Broader: expert: a person with special knowledge or ability who performs skillfully | Unrelated: mid-february: the middle part of February
Broader: expert: a person with special knowledge or ability who performs skillfully | Unrelated: criminal intelligence services of canada: an agency of the Canadian government that unifies the intelligence units of Canadian law enforcement agencies
Broader: expert: a person with special knowledge or ability who performs skillfully | Unrelated: tenure: the right to hold property; part of an ancient hierarchical system of holding lands