Thus, an M2 x 0.4 screw has threads every 0.4mm. Although most metric fasteners have two or more standard pitches (fine & coarse threads), the pitch is often omitted from a thread callout; it is always helpful to carry a sample with you to the hardware store.
A tincture is a liquid extract made by soaking herbs in alcohol to extract the active ingredients from the herbs. Alcohol is considered an excellent solvent because it is food grade and can extract herbal constituents, such as resins and alkaloids, that are poorly soluble in water.
Full Definition of ACUPUNCTURE. : an originally Chinese practice of inserting fine needles through the skin at specific points especially to cure disease or relieve pain (as in surgery).â acupuncture transitive verb. â acuÂ·puncÂ·turÂ·ist \-ËpÉÅ(k)-chÉ-rist\ noun.See acupuncture defined for English-language learners.edical Definition of ACUPUNCTURE. : an originally Chinese practice of inserting fine needles through the skin at specific points especially to cure disease or relieve pain (as in surgery).