剂
Character Story & Explanation
剂 has been used since at least the Han Dynasty (206 BCE–220 CE) in medical texts like the Shennong Ben Cao Jing (Divine Farmer’s Materia Medica), where it appeared in terms like 药剂 (yàojì, medicinal preparation) — referring to formulated herbal mixtures. Today, it’s ubiquitous on product packaging: 防腐剂 (preservative), 洗涤剂 (detergent), and 化学试剂 (chemical reagent) appear on supermarket shelves, lab manuals, and food safety regulations across China.
The character’s form combines 齊 (qí, ‘even, uniform’) — now simplified to 齐 — on the left, representing balanced proportions, and 刂 (the knife radical) on the right, signaling preparation or processing. This reflects its core meaning: a precisely mixed, functional compound — not a random blend, but a measured, purposeful formulation.
Hi students! Let’s learn 剂 (jì), an HSK Level 6 character with just 8 strokes — but don’t let its simplicity fool you. It’s a key word in science, medicine, and daily life. Think of it as the Chinese equivalent of ‘-agent’ or ‘-compound’ in English: a substance created by mixing ingredients to serve a specific function. Its radical 刂 (the ‘knife’ or ‘cutting’ radical) hints at processing — cutting, preparing, or refining raw materials into something usable.
This character almost never stands alone in speech; it appears in compound words like 消毒剂 (disinfectant) or 添加剂 (additive). That’s why it’s vital to learn it within phrases — not as an isolated concept. The sound jì is a fourth-tone, falling tone: say it sharply, like giving a firm command — ‘jeeh!’ — not a rising question.
While 剂 may seem technical, it’s deeply embedded in modern life: from food labels listing preservatives (防腐剂) to pharmacy signs for antiseptics (杀菌剂). Even young learners encounter it in school science labs or when reading health posters. Mastering 剂 helps you decode real-world Chinese — especially in health, chemistry, and safety contexts — making it far more practical than its advanced HSK level might suggest.
Example Sentences
Common Compounds
Similar Characters — Don't Mix These Up
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