|a gadget; dingus; thingumbob.|
|a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.|
|1.||having a defect or flaw; imperfect; faulty|
|2.||(of a person) below the usual standard or level, esp in intelligence|
|3.||grammar (of a word) lacking the full range of inflections characteristic of its form class, as for example must, which has no past tense|
defective de·fec·tive (dĭ-fěk'tĭv)
Having an imperfection or malformation.
Lacking or deficient in some physical or mental function.