Words Containing: O,P,A,I,C

• the phenomenon of not permitting the passage of electromagnetic radiation

• incomprehensibility resulting from obscurity of meaning

• the quality of being opaque to a degree; the degree to which something reduces the passage of light

• being without sound through injury or illness and thus incapable of all but whispered speech

• lacking light; especially not reached by sunlight

• A line on a chart joining parts of a stratigraphic unit that have the same thickness; an isopachous line.

• any plant of the genus Silene

• an oleoresin used in varnishes and ointments