丝米 (sī mǐ) — (classifier) decimillimeter, 0.0001 meter

Definition

A specialized unit equal to 0.0001 meter (one ten-thousandth of a meter). Used only in precision engineering and metrology, never in everyday measurement.

classifier
decimillimeter0.0001 meter

Examples

  • 丝米。
    Zhè ge líng jiàn de wù chā bù néng chāo guò yì sī mǐ.
    The tolerance for this part cannot exceed one decimillimeter.
  • 丝米。
    Guāng xiān de zhí jìng dà yuē shì shí sī mǐ.
    The diameter of the optical fiber is about ten decimillimeters.
  • 丝米。
    Tā men yòng jīng mì yí qì cè liáng dào le wǔ sī mǐ de chā yì.
    They measured a difference of five decimillimeters using precision instruments.

Origin

Compound word
构词法gòucífǎ
偏正piānzhèngModifier + head

The first part narrows down the second: it says what kind of thing the head is.

丝sīfine thread
米mǐmeter

A tiny length unit: '丝' suggests a fine thread and '米' is the meter.

Characters in this word

Two or more meaningful parts placed together so that their meanings combine into a new one.

This origin belongs to the traditional form 絲; 丝 is its simplified writing.

  • 糸糸mì
  • 糸糸mì

In the traditional form 絲, the shape is two 糸 written together; this is about 絲, not the simplified 丝.

Open 丝 →

A drawing of the thing itself, worn down over three thousand years into a few strokes.

米 is a picture of rice kernels without husk, with the horizontal stroke as a bamboo sieve. It is unrelated to similar-looking grain characters.

Open 米 →

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