How to Write 肼 (jǐng) — Meaning “hydrazine”

Imagine a well (井) filled with meat (月) that gives off a strange chemical smell — that’s hydrazine. The picture of a well with meat helps connect the components to the meaning. This visual reminds you that 肼 is a chemical term related to hydrazine.

Write the left radical 月 first with its narrow shape: stroke order is vertical, horizontal hook, then two inner horizontals. Then add the right side 井: two horizontals from top to bottom, then the left vertical and right vertical. A common mistake is making the right side too wide — keep it balanced and slightly narrower than the left.

The right side of 肼 is 井 (a well shape with two horizontals and two verticals), while 有 has 又 (a hand-like cross) and 朊 has 元 (a two-horizontal plus a child-like component). Visually, 肼 looks more open and boxy on the right. In meaning, 肼 is a chemical, 有 means ‘to have’, and 朊 refers to a different organic compound.

肼 appears mostly in chemistry contexts, especially in words like 肼基 (hydrazino group) and 甲基肼 (methylhydrazine). It is not used in everyday conversation but is important in science textbooks and research. Hydrazine is a rocket fuel and also used in making medicines, so you will see 肼 in technical writing.

Common words containing 肼 include: 肼基 (jǐng jī) — hydrazino group; 苯肼 (běn jǐng) — Phenylhydrazine; 甲基肼 (jiǎ jī jǐng) — methylhydrazine.