negative scotoma n.
A scotoma that is not ordinarily perceived and is detected only on examination of the visual field.
- Negative sign
noun 1. the symbol (–) used to indicate a negative quantity or a subtraction; minus sign
- Negative space
noun empty space, space around an object or form; also called white space
- Negative-strand virus
negative-strand virus n. An RNA virus whose genome is complementary to mRNA and that carries RNA polymerases necessary for the synthesis of mRNA.
- Negative stain
negative stain n. A stain forming an opaque or colored background to an object that appears translucent or colorless.