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lustrum

noun/ˈlʌstrəm/

definition

a period of five years

example

The committee meets every lustrum to review the progress of the long-term projects and set new goals for the upcoming five years.

synonyms
five-year periodquinquenniumpentad
word origin — From Latin 'lustrum', originally referring to a purification ceremony that occurred every five years in ancient Rome.

Word Ultra — Set 23

Set 23 of Word Ultra covers 5 words: lustrum, parasitology, recidivism, penetralia, collation. Each entry below includes its definition, an example sentence, and synonyms — practice them with the interactive cards above.

  1. lustrum · noun/ˈlʌstrəm/

    a period of five years

    The committee meets every lustrum to review the progress of the long-term projects and set new goals for the upcoming five years.

    Synonyms: five-year period, quinquennium, pentad

    Origin: From Latin 'lustrum', originally referring to a purification ceremony that occurred every five years in ancient Rome.

  2. parasitology · noun/ˌpærəˈsɪtɑːlədʒi/

    the study of parasites and their relationships with host organisms

    The course on parasitology provided a thorough understanding of the complex interactions between parasites and their hosts.

    Synonyms: parasitism, parasitic biology, parasite studies

    Origin: from 'parasite' (from Greek 'parasitos', meaning 'one who eats at the table of another') + '-ology' (from Greek 'logia', meaning 'study of')

  3. recidivism · noun/rɪˈsɪdəˌvɪzəm/

    the tendency of a convicted criminal to reoffend

    The study found that high rates of recidivism among juvenile offenders can be attributed to a lack of support systems post-release.

    Synonyms: relapse, reoffending, reversion

    Origin: from Latin 'recidivus' meaning 'falling back' or 'to fall back', from 're-' meaning 'again' and 'cadere' meaning 'to fall'.

  4. penetralia · noun/ˌpɛnəˈtreɪliə/

    the innermost parts or deeper secrets of a place or a situation

    Exploring the penetralia of the ancient temple revealed artifacts that had been hidden for centuries.

    Synonyms: inward parts, recesses, depths

    Origin: Latin 'penetralis', from 'penetrare' meaning 'to penetrate'

  5. collation · noun/kəˈleɪʃən/

    the action of collecting and assembling information or data in a systematic manner

    The collation of data from various sources revealed significant trends in customer behavior.

    Synonyms: collection, assembly, compilation

    Origin: from Latin 'collatio', meaning 'a bringing together'