Gram's method of distinguishing the two main groups of bacteria

(medicine, of a bacterium) that is not stained violet by Gram's method

(medicine, bacteriology, of a bacterium) That is stained violet by Gram's method

(idiomatic) The entire or final sum.

(idiomatic) To prove satisfactory; to be successful or worthy of merit.

Alternative spelling of low-grade

Of inferior quality.

(US, education) The first year of grade school, the period in school that comes after kindergarten and before second grade. Children usually begin first grade at age six.

A person who studies grammar.

(chiefly US) An at-grade crossing between a railroad line and an ordinary road, with tracks and road at the same level.