10-Letter Words with A,T,O,O,N,_

• parallel to or in the plane of the horizon or a base line

• something that is oriented horizontally

• a sloop with a simplified rig and no bowsprit

• full of rough and exuberant animal spirits

• suitable for rough use

• sessile marine coelenterates including solitary and colonial polyps; the medusoid phase is entirely suppressed

• Any device that releases oxygen (or air) into water, especially one in an aquarium

• of or relating to the Protozoa

• any of diverse minute acellular or unicellular organisms usually nonphotosynthetic

• any of the flagellated cells in sponges having a collar of cytoplasm around the flagellum; they maintain a flow of water through the body

• oral antidepressant (trade name Desyrel) that is a nontricyclic drug used as a sedative

• the condition of being dissociated into ions (as by heat or radiation or chemical reaction or electrical discharge)

• the process of ionizing; the formation of ions by separating atoms or molecules or radicals or by adding or subtracting electrons from atoms by strong electric fields in a gas