Definition of Pernicious

1. Adjective. Exceedingly harmful.

Exact synonyms: Baneful, Deadly, Pestilent
Similar to: Noxious
Derivative terms: Deadliness, Perniciousness, Pestilence

2. Adjective. Working or spreading in a hidden and usually injurious way. "A subtle poison"
Exact synonyms: Insidious, Subtle
Similar to: Harmful
Derivative terms: Insidiousness, Perniciousness

Definition of Pernicious

1. a. Quick; swift (to burn).

2. a. Having the quality of injuring or killing; destructive; very mischievous; baleful; malicious; wicked.

Definition of Pernicious

1. Adjective. Causing much harm in a subtle way. ¹

2. Adjective. Causing death or injury; deadly. ¹

¹ Source: wiktionary.com

Definition of Pernicious

1. [adj]

Medical Definition of Pernicious

1. Tending to a fatal issue. Origin: L. Perniciosus This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lexicographical Neighbors of Pernicious

permuting
permutite
permutohedra
permutohedral
permutohedron
permyriad
pern
perna disease
pernambuco wood
pernancies
pernancy
perne
pernicion
pernicions
perniciosiform
pernicious (current term)
pernicious anaemia
pernicious anaemia type rubriblast
pernicious anemia
pernicious anemias
pernicious anæmia
pernicious malaria
pernicious vomiting
perniciously
perniciousness
pernicity
pernicketiness
pernickety
pernio
perniones

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