A small bar of gold and silver, either pure, or alloyed in some known proportion with copper, for testing the purity of gold or silver articles by comparison of the streaks made by the article and the bar on a touchstone.

plural of knitting needle

(idiomatic) To find harmony or strike a balance between conflicting forces, interests, etc. Normally used to indicate the difficulty of doing so; also, sarcastically, for a failed attempt.

A game in which children stand in a row, joining hands, and in which the outer one, still holding his neighbour, runs between the others.

(medicine) A form of acupuncture used to relieve pain in the muscles

plural of sea needle

(dated) The garfish. / The pipefish

Vachellia farnesiana, sweet acacia, huisache, native to the tropical Americas, now widespread in warm climates on all continents.

(medicine, surgery) A needle with a hole in its center.

The angle a balanced magnetic needle makes with the plane of the horizon, measured by the dipping needle, or compass.