door·mat 
(dôrmăt′)
(dôrmăt′)n.
1. A mat placed before a doorway for wiping the shoes.
2. Slang One who submits meekly to domination or mistreatment by others.
- adenitis
- adeno-
- adenocarcinoma
- adenocarcinomatous
- adenohypophyseal
- adenohypophysial
- adenohypophysis
- adenoid
- adenoidal
- adenoma
- adenomatoid
- adenomatous
- adenomyosis
- adenosine
- adenosine diphosphate
- adenosine monophosphate
- adenosine triphosphatase
- adenosine triphosphate
- adenosis
- adenoviral
- adenovirus
- adenylate cyclase
- adenyl cyclase
- adenylic acid
- adept