蝋ろう燭そくの芯しん

also: ローソクのしん

Meanings

1

candle wick

Refers specifically to the wick of a candle, the string that burns.

蝋ろう燭そくの芯しんが短みじかくなったので、火ひが消きえそうだ。
The candle wick has become short, so the flame is about to go out.
新あたらしい蝋ろう燭そくの芯しんを買かってきてください。
Please buy a new candle wick.

Kanji

蝋wax
燭light, candlepower
芯wick
心heart, mind, spirit

Related words

蝋ろう燭そく
蝋燭 means 'candle' as a whole, while 蝋燭の芯 specifically refers to the wick.
芯しん
芯 is a general term for 'wick' or 'core', used in various contexts (e.g., pencil lead, fruit core). 蝋燭の芯 is the specific candle wick.

Built from

ろうそく+芯しん

Written forms

蝋ろう燭そくの芯しん
Standard kanji spelling using 蝋燭 (candle) and 芯 (wick).
蝋ろう燭そくの心しん
Variant using 心 (heart) for 芯; less common and potentially confusing.
ローソクの芯しん
Katakana spelling for 蝋燭, sometimes used for clarity or stylistic reasons.
ローソクのしん

Etymology

Compound of 蝋燭 (candle) + の (possessive particle) + 芯 (wick). The kanji 芯 originally refers to the pith or core of a plant, extended to mean wick.