Search BSB. Hydrogen: Chemical element with atomic number 1. Symbol: H H is the lightest, most abundant chemical element H makes up about 75 % of the Universe's elemental mass. Hydrogen = H Hydro = Greek = water gene = Greek = creating Hydrogen has a simple atomic structure-one proton + one an electron.
Wiktionary (0.00 / 0 votes) Rate this definition: dilapidation (Noun). The state of being dilapidated, reduced to decay, partially ruined. dilapidation (Noun). The act of dilapidating, damaging a building or structure through neglect or by intention.
dilation is a transformation (notation) that produces an image that is the same shape as the original, but is a different size. A dilation stretches or shrinks the original figure. The description of a dilation includes the scale factor (or ratio) and the center of the dilation.The center of dilation is a fixed point in the plane about which all points are expanded or contracted. It is the only invariant point under a dilation.A dilation of scalar factor k whose center of dilation is the origin may be written: Dk (x, y) = (kx, ky).efinition: A dilation is a transformation of the plane, , such that if O is a fixed point, k is a non-zero real number, and P' is the image of point P, then O, P and P' are collinear and. Notation: PROBLEM: Draw the dilation image of pentagon ABCDE with the center of dilation at the origin and a scale factor of 1/3.