Definition

1. Verb (dialectal):
   • To inoculate against smallpox: The primary meaning of "trồng trái" is a dialectal term for the historical practice of variolation, a method of inducing immunity to smallpox by intentionally infecting a person with material from a smallpox pustule.

Usage Examples

• Verb:
  • Ngày xưa, người ta thường trồng trái để phòng bệnh đậu mùa. (In the past, people often inoculated to prevent smallpox.)
  • Bà tôi kể rằng bà đã được trồng trái khi còn nhỏ. (My grandmother told me she was inoculated when she was a child.)

Advanced Usage

• The term is archaic and refers specifically to pre-modern medical practices before the development of the modern smallpox vaccine. It is a historical term and not used in contemporary medicine.

Variants and Related Words

• Chủng đậu (v): The more standard term for smallpox inoculation or vaccination.
  • Chủng đậu đã giúp thanh toán bệnh đậu mùa. (Vaccination helped eradicate smallpox.)

Synonyms

• Inoculate: To introduce a pathogen or antigen into a living organism to stimulate immunity.
• Variolate: To inoculate with the smallpox virus (specifically for historical variolation).

Notes on Usage

• "Trồng trái" is a dialectal and largely obsolete term. In modern contexts, the standard terms are "tiêm phòng" (to vaccinate) or "chủng ngừa" (to immunize).