13-Letter Words Containing: A,A,C,E,E,O,P

• extinct primitive toothed bird of the Jurassic period having a long feathered tail and hollow bones; usually considered the most primitive of all birds

• a reference work (often in several volumes) containing articles on various topics (often arranged in alphabetical order) dealing with the entire range of human knowledge or with some particular specialty

• a graphical record of electrical activity of the brain; produced by an electroencephalograph

• an X ray of the brain made by replacing spinal fluid with a gas (usually oxygen) to improve contrast

• a virus that is parasitic (reproduces itself) in bacteria

• an analgesic for mild pain but not for inflammation; also used as an antipyretic; (Datril, Tylenol, Panadol, Phenaphen, Tempra, and Anacin III are trademarks of brands of acetaminophen tablets)

• a scientist who studies physical and biological aspects of the seas

• the act of refusing an offer

• (collective) A group of islands.

• (by extension) Something scattered around like an archipelago.