Pernicious Per*ni"cious, a. [L. perniciosus, from pernicies destruction, from pernecare to kill or slay outright; per + necare to kill, slay: cf. F. pernicieux. Cf. {Nuisance}, {Necromancy}.] Having the quality of injuring or killing; destructive; very mischievous; baleful; malicious; wicked. [1913 Webster]

Let this pernicious hour Stand aye accursed in the calendar. --Shak. [1913 Webster]

Pernicious to his health. --Prescott. [1913 Webster]

Syn: Destructive; ruinous; deadly; noxious; injurious; baneful; deleterious; hurtful; mischievous. [1913 Webster] -- {Per*ni"cious*ly}, adv., -- {Per*ni"cious*ness}, n. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • perniciousness — index fatality, harm Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • perniciousness — pernicious ► ADJECTIVE ▪ having a harmful effect, especially in a gradual or subtle way. DERIVATIVES perniciously adverb perniciousness noun. ORIGIN Latin perniciosus destructive …   English terms dictionary

  • perniciousness — noun see pernicious …   New Collegiate Dictionary

  • perniciousness — See perniciously. * * * …   Universalium

  • perniciousness — noun The condition of being pernicious; destructiveness …   Wiktionary

  • perniciousness — per ni·cious·ness || pÉ™r nɪʃəsnɪs /pÉ™ n. malignancy; harmfulness, destructiveness; deadliness, fatality …   English contemporary dictionary

  • perniciousness — per·ni·cious·ness …   English syllables

  • perniciousness — noun grave harmfulness or deadliness • Syn: ↑toxicity • Derivationally related forms: ↑pernicious • Hypernyms: ↑unwholesomeness, ↑morbidness, ↑morbidity …   Useful english dictionary

  • toxicity — noun 1. the degree to which something is poisonous • Derivationally related forms: ↑toxic • Hypernyms: ↑definite quantity • Hyponyms: ↑cytotoxicity 2. grave harmfulness or deadliness • Syn …   Useful english dictionary

  • Malignity — Ma*lig ni*ty, n. [F. malignit[ e], L. malignitas.] 1. The state or quality of being malignant; disposition to do evil; virulent enmity; malignancy; malice; spite. [1913 Webster] 2. Virulence; deadly quality. [1913 Webster] His physicians… …   The Collaborative International Dictionary of English

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