Definition

1. Noun:
   • A distinctive odor that is offensively unpleasant: A strong, foul, and often sickening smell.
   • A poisonous or foul-smelling gas emitted from the earth: A noxious vapor or gas, historically believed to rise from the ground, especially in marshy areas, and cause disease.

Examples of Usage

• Noun:
  • The mephitis from the swamp made it difficult to breathe. (The foul-smelling gas from the swamp made it difficult to breathe.)
  • They detected a mephitis of decay coming from the abandoned cellar. (They detected a foul odor of decay coming from the abandoned cellar.)

Advanced Usage

• Scientific/Historical Context: The term is often used in historical, literary, or scientific contexts to describe air believed to be pestilential or disease-causing.
  • Ancient doctors believed that mephitis in the air was the cause of malaria. (Ancient doctors believed that foul air was the cause of malaria.)

Variants and Related Words

• Mephitic (adj): Having a foul, poisonous, or pestilential quality.
  • The cave was filled with a mephitic atmosphere. (The cave was filled with a foul, poisonous atmosphere.)

Synonyms

• Stench: A strong and very unpleasant smell.
• Fetor: A strong, foul smell.
• Miasma: A highly unpleasant or unhealthy smell or vapor, often linked to disease.
• Reek: A strong, unpleasant smell.

Idioms and Phrases

• None commonly associated directly with the word "mephitis." It is a specific, formal term typically used in its literal sense.

Noun

1. in some classifications: type genus of the subfamily Mephitinae
2. a distinctive odor that is offensively unpleasant
3. a poisonous or foul smelling gas emitted from the earth