Definition

Noun: * Potassium: A soft, silver-white metallic chemical element (symbol K) that is essential for all living cells. It is highly reactive and is found in nature only in compounds, such as in many minerals and in seawater. In biology, it is a crucial electrolyte for nerve function and muscle contraction.

Usage Examples

• Noun:
  • Chuối là một nguồn cung cấp ka li dồi dào. (Bananas are a rich source of potassium.)
  • Sự thiếu hụt ka li có thể gây ra chuột rút cơ bắp. (A deficiency of potassium can cause muscle cramps.)
  • Kali nitrat là một hợp chất của ka li được sử dụng trong phân bón. (Potassium nitrate is a compound of potassium used in fertilizer.)

Advanced Usage

• Chemical & Scientific Context: The word "kali" is primarily used in scientific, medical, nutritional, and chemical contexts. In everyday conversation, people more commonly refer to it through food sources (e.g., "thực phẩm giàu kali") rather than the element itself.
  • Nồng độ ka li trong máu được kiểm soát chặt chẽ bởi thận. (Blood potassium levels are tightly regulated by the kidneys.)

Variants and Related Words

• Kalium (n): This is a less common, archaic, or technical synonym for "kali," directly derived from the Latin/German name for the element. It is sometimes seen in older scientific texts.
  • Ký hiệu hóa học của kalium là K. (The chemical symbol for kalium is K.)

Synonyms

• K (n): The chemical symbol for potassium.
  • Chế độ ăn cần đảm bảo đủ các chất như Na, K, và Ca. (The diet needs to ensure sufficient amounts of substances like Na, K, and Ca.)

noun

1. potassium