Clue: DNA-sampling tool

Answer: SWAB

Length: 4

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Similar Clues:

• Leather-piercing tools (AWLS with 4 letters)
• Having a rounded cutting edge, as a tool (HOGNOSE with 7 letters)
• Agricultural tool (HOE with 3 letters)
• Mountain-climber's tools (ICEAXES with 7 letters)
• Carpenter's scoring tool (SCRIBER with 7 letters)
• Tool -- (KIT with 3 letters)
• Rough tools (RASPS with 5 letters)
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• Instructional tool (ARROW with 5 letters)
• "... edged tools [to] be kept from children and from fools": Dryden (SECRETS with 7 letters)