2. Noun. (engineering) A line joining two centers, or fulcra, as of wheels or levers. ¹
3. Noun. A line which determines a dead center. ¹
¹ Source: wiktionary.com
2. Noun. (engineering) A line joining two centers, or fulcra, as of wheels or levers. ¹
3. Noun. A line which determines a dead center. ¹
¹ Source: wiktionary.com