单词 | limb |
释义 | limb [limb] ANATOMY An extremity or appendage used for locomotion or prehension, such as an arm or a leg. ASTRONOMY The circular outer edge of a celestial body; the half with the greater altitude is called the upper limb, and the half with the lesser altitude, the lower limb. BOTANY A large primary tree branch. DESIGN ENGINEERING 1. The graduated margin of an arc or circle in an instrument for measuring angles, as that part of a marine sextant carrying the altitude scale. 2. The graduated staff of a leveling rod. GEOLOGY One of the two sections of an anticline or syncline on either side of the axis. Also known as flank. |
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