Anagrams of: AOPTIC_

• marine bivalve common in Philippine coastal waters characterized by a large thin flat translucent shell

• of or containing nitrogen

• a yellow quartz

• a mineral (fluosilicate of aluminum) that occurs in crystals of various colors and is used as a gemstone

• a light brown the color of topaz

• before the appearance of life

• pertaining to animals or animal life or action

• a code of letters and digits added to a postal address to aid in the sorting of mail

• a quantity of no importance; thing (object:), singular, negative pronoun; pronoun, thing, singular; quantifier: negative existential

• forceful exertion

• a fastener for locking together two toothed edges by means of a sliding tab

• close with a zipper

• move very fast

• of or relating to or caused by a toxin or poison

• Cousin (usually as a term of address)

• Because

• a sudden event that imparts energy or excitement, usually with a dramatic impact

• strike suddenly and with force

• kill with or as if with a burst of gunfire or electric current or as if by shooting

• strike at with firepower or bombs

• cook or heat in a microwave oven

• 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