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.
verb (used with object), dilapidated, dilapidating. 1. to cause or allow (a building, automobile, etc.) to fall into a state of disrepair, as by misuse or neglect (often used passively): The house had been dilapidated by neglect.