knurl

knurl — 名詞

1. a small, hard, round lump that sticks out from the surface of something, such as

1.名詞C2
釋義

小凸塊

表面上的硬質圓形突起

a small, hard, round lump that sticks out from the surface of something, such as on a piece of wood, a bone, or tree bark

例句

Ramón ran his thumb over the knurl on the oak branch, wondering if the tree was diseased.

Ramón 用拇指摸過橡樹枝上的小凸塊，心想這棵樹是不是生病了。

The wooden chair had a knurl on its arm where a branch had once grown.

那張木椅的扶手上有一個小凸塊，是以前長出樹枝的地方。

collocation: knurl on [surface]

同義詞
  • bump

    much more common and general; any raised area on a surface

  • lump

    a swelling or solid mass, often larger or softer than a knurl

  • knob

    a rounded protrusion with a more defined shape; also used for door handles

  • nodule

    more technical or medical; a small rounded lump found in geology or on the body

反義詞
  • dent

    a hollow or depression, the opposite shape of a raised bump

  • hollow

    an indentation or empty space within a surface

用法筆記

This sense is uncommon in everyday speech and may sound literary or technical. A knurl in this meaning is typically a natural feature of a surface, such as a knot in wood or a growth on bone, not a man-made feature.

常見錯誤

❌He sanded down the knurled on the branch.
✅He sanded down the knurl on the branch.
💡'knurl' is the noun for the lump itself; 'knurled' is an adjective describing a surface that has been given a rough texture.

2. a small raised line or bump that is pressed or cut into a metal part, giving the

2.名詞C2
釋義

滾花

金屬表面為防滑而壓出的細紋

a small raised line or bump that is pressed or cut into a metal part, giving the surface a rough texture so it does not slip when held

例句

The metal handle had fine knurls along its sides so Niran could grip it firmly.

金屬把手兩側有細密的滾花，讓 Niran 能夠緊緊握住。

Salma chose a jar opener with deep knurls since her hands got slippery when cooking.

Salma 選了一把有深刻滾花的開罐器，因為她做菜時手會滑。

collocation: deep knurls

同義詞
  • ridge

    a much more general term for any long raised line on a surface

  • bead

    a narrow rounded band, similar in shape but often decorative rather than functional

  • groove

    a channel or indentation; the opposite shape of a knurl

反義詞

用法筆記

The related adjective 'knurled' appears frequently in manufacturing catalogues (e.g. 'knurled knob', 'knurled handle'). The noun is often used in the plural because knurls are typically created in a patterned series rather than as a single ridge.

常見錯誤

❌The knurls on the handle help you to slip it easily.
✅The knurls on the handle help you to grip it firmly.
💡knurls are designed to prevent slipping, not to make something more slippery.