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| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a gadget; dingus; thingumbob. |
| touch off | |
| —vb | |
| 1. | to cause to explode, as by touching with a match |
| 2. | to cause (a disturbance, violence, etc) to begin: the marchers' action touched off riots |
touch (tŭch)
n.
The physiological sense by which external objects or forces are perceived through contact with the body.
Digital examination.
touch definition
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touch off
Cause to explode or fire; also, initiate, trigger. For example, The boys touched off a whole line of firecrackers, or These disclosures will touch off a public uproar. This idiom comes from early firearms, which were set off by putting a light to the touch-hole. Its figurative use dates from the late 1800s.
Depict very precisely, as in He touched off Teddy Roosevelt as well as it's ever been done. [Mid-1700s]