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List of 7-letter words beginning with

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There are 7 seven-letter words beginning with OPA

OPACIFY• opacify v. (Transitive) To make opaque.
• OPACIFY v. to make opaque.
OPACITY• opacity n. (Uncountable) The state or quality of being opaque, not allowing light to pass through.
• opacity n. (Uncountable) The state or quality of being inaccessible to understanding.
• opacity n. (Optics, countable) A measure of relative impenetrability to electromagnetic radiation such as light.
OPACOUS• opacous adj. (Obsolete, chiefly poetic) Not shining or illuminated; dark.
• opacous adj. (Obsolete) Not allowing the passage of light; opaque.
• OPACOUS adj. (archaic) opaque.
OPALINE• opaline adj. Resembling opal in its iridescence; having a milky white iridescence.
• opaline n. A clear to white liquid secreted by sea hares (genus Aplysia) that becomes viscous upon contact with water.
• opaline n. (Mineralogy) any of several minerals resembling opal, including a variety of yellow chalcedony.
OPAQUED• opaqued v. Simple past tense and past participle of opaque.
• OPAQUE v. to make opaque.
OPAQUER• opaquer adj. Comparative form of opaque: more opaque.
• OPAQUE adj. impervious to light.
OPAQUES• opaques v. Third-person singular simple present indicative form of opaque.
• OPAQUE v. to make opaque.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the WikWik.org and 1Word.ws.

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