Glossary Coin dictionary Coin Terminology and Glossary The Coin Collecting Dictionary includes 546 terms used widely in the coin collectors community, and has received over 309176 search inquires. Search for a term Please type in the collecting term you would like to search ...
Myth: Spider bites leave two punctures. Myth: You can always tell a spider bite because a spider leaves two punctures. Fact: There is a germ of truth in this idea, but only a very tiny germ. Spiders do have two venom-injecting fangs and typically bite with both at the same time.
The test is read 2 to 7 days later. 1  Grade 0: no reaction, or induration of 3 or less puncture points; 2  Grade 1: induration of four or more puncture points; 3  Grade 2: induration of the six puncture points coalesce to form a circle; 4  Grade 3: induration of 5 mm; or more. 5  Grade 4: induration of 10 mm or more, or ulceration.