The Chinese abacus is thought to have been created by a famous mathematician Cheng Dawei of the Ming Dynasty between 1368 and 1644. A typical elementary abacus has 10 parallel wires strung between two boards on a frame, with nine beads on each wire. Each bead has a value of 10, a multiple or sub multiple of 10.
The definition of a snigger is a contained or half held-in laugh. An example of a snigger is a quiet laugh behind a person's back. Snigger is defined as to snicker or hold back a laugh. An example of snigger is to secretly laugh at someone behind their back.
(snÄz), 1. To expel air from the nose and mouth by an involuntary spasmodic contraction of the muscles of expiration. 2. An act of sneezing; a reflex excited by an irritation of the mucous membrane of the nose or, sometimes, by a bright light striking the eye. sneeze. 1. to expel air forcibly and spasmodically through the nose and mouth. 2. an involuntary, sudden, violent, and audible expulsion of air through the mouth and nose.