yeoman A person who holds and cultivates a small landed estate.last updated 22 Mar 2015 http://en.wikipedia.org/wiki/Yeomanlast updated 22 Mar 2015
yoke yoke" is something which is a device that is a bar like wooden structure used to fasten over the necks of two animals and is connected to something for pulling.last updated 02 Mar 2015 http://en.wikipedia.org/wiki/Yokelast updated 02 Mar 2015
yollow One of process colours (CMYK)
younger brother A male person who is one's brother that is younger than other children of one's parents.last updated 20 Feb 2015 http://en.wikipedia.org/wiki/Siblinglast updated 20 Feb 2015
younger sister A female person who is one's sister that is younger than other children of one's parents.last updated 20 Feb 2015 http://en.wikipedia.org/wiki/Siblinglast updated 20 Feb 2015
youngest son A male person who is one's youngest son of one's family with three or more children.last updated 20 Feb 2015 http://en.wikipedia.org/wiki/Sonlast updated 20 Feb 2015
ytterbium A 'mass' thing this a chemical element of symbol Xb, atomic number 70, and atomic weight 173.1last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Ytterbiumlast updated 16 Feb 2015
yttrium A 'mass' thing this a chemical element of symbol Y, atomic number 39, and atomic weight 88.91last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Yttriumlast updated 16 Feb 2015