Definition

1. Adjective:

   • Occurring every other day; happening or recurring at intervals of two days (i.e., with one day in between). This term is most commonly used in medical contexts to describe the pattern of a fever or symptoms.

2. Adverb:

   • On alternate days; every second day. Describes the frequency with which an action is performed or an event occurs.

Usage Examples

• Adjective:

  • Bệnh nhân có cơn sốt cách nhật. (The patient has a fever that occurs every other day.)
  • Đây là một loại sốt rét cách nhật. (This is a type of tertian malaria.)

• Adverb:

  • Tôi tập thể dục cách nhật. (I exercise every other day.)
  • Thuốc này uống cách nhật. (Take this medicine on alternate days.)

Advanced Usage

• The term is highly specific and is most frequently encountered in formal or medical Vietnamese. In the phrase "sốt cách nhật", it is a direct medical term for a tertian fever (a fever paroxysm occurring every 48 hours), often associated with certain types of malaria.

Variants and Related Words

• Cách tuần: occurring every other week; bi-weekly.
• Cách ngày: a more general synonym meaning "every other day" or "with a day's interval."

Synonyms

• Every other day
• Alternate-day
• On alternate days
• Bidaily (less common, technical)

Related Medical Terminology

• Sốt cách nhật (Tertian fever): A fever pattern where the fever spike recurs every 48 hours.
• Sốt hằng ngày (Quotidian fever): Fever occurring daily.
• Sốt cách ba ngày (Quartan fever): Fever recurring every 72 hours.

1. Every other day
   • sốt cách nhật
     tertian fever