đá nhám

Thân thiện

Thợ mộc dùng đá nhám để làm nhẵn bề mặt chiếc bàn gỗ trước khi sơn.

Definition

1. Noun:
   • Pumice stone: A type of light, porous volcanic rock used for smoothing or polishing surfaces, or for removing hard skin.
   • Abrasive stone / Rough stone: A general term for a rough-textured stone used for grinding, sharpening, or smoothing other materials.

Usage Examples

• Noun:
  • Cô ấy dùng đá nhám để làm mịn da chân. (She uses a pumice stone to smooth her feet.)
  • Thợ mộc dùng đá nhám để mài nhẵn bề mặt gỗ. (The carpenter uses an abrasive stone to smooth the wood surface.)

Advanced Usage

• The term "đá nhám" can refer specifically to natural pumice or to any manufactured abrasive stone with a coarse, gritty surface used in crafts or industry.

Variants and Related Words

• Đá bọt: Pumice stone. Often used interchangeably with "đá nhám".
• Đá ráp: Rough stone, abrasive stone. A synonym emphasizing the coarse texture.
• Giấy nhám (n): Sandpaper. A related abrasive material made from paper or cloth.

Synonyms

• Pumice: A light, porous volcanic rock.
• Abrasive stone: A stone used for grinding or polishing.
• Grindstone: A wheel or block used for sharpening or grinding.

Notes on Usage

• "Đá nhám" is commonly understood in everyday Vietnamese to mean pumice stone for personal care.
• In technical or craft contexts (e.g., woodworking, metalworking), it broadly means any abrasive stone or rough stone used for smoothing.

Học thuật

1. như đá bọt
2. (địa phương) như đá ráp