| Part of Speech | Definition | |
| Expression | 1. A line made of hair; a very slender line.[Websters]. | |
| Top | ||
Common Expressions: HAIR LINE
| Expressions | Definition | ||
| Hair line | A line made of hair; a very slender line. Source: Webster's Revised Unabridged Dictionary. | ||
Source: compiled by the editor from various references; see credits. | Top | ||
Specialty Expressions: HAIR LINE
| Expressions | Domain | Definition | |
| Hair line | Metallurgy | Greatly elongated bubble of small cross-section, in rod, tubing or drawn flat glass. Hair line is usually used only to describe the finest of these bubbles. Source: European Union. (references) | |
| Hair line crack | Metallurgy | Fine fissures found lying in all directions in the interior of steel forgings. Source: European Union. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
