Physical. Salmonella bacteria are rod-shaped gram-negative bacteria. Gram-negative bacteria do not retain the crystal violet dye used in the gram staining method due to the fact that they have cell walls that are thin.
Noun. 1. nightie-lingerie consisting of a loose dress designed to be worn in bed by women. nightdress, nightgown, night-robe, gown. intimate apparel, lingerie-women's underwear and nightclothes.
Meaning: Member of a secret mounted band in United States south after the American Civil War; committed acts of intimidation and revenge. Classified under: Nouns denoting people. Synonyms: night rider; nightrider. Hypernyms (night rider is a kind of...): aggressor; assailant; assaulter; attacker (someone who attacks)