observation dome
— Noun
– English
～ lookout consisting of a dome-shaped observatory
observation
— Noun
– English
～ a remark expressing careful consideration
observation
— Noun
– English
～ the act of making and recording a measurement
observation
— Noun
– English
～ the act of observing; taking a patient look
observatory
— Noun
– English
～ a building designed and equipped to observe astronomical phenomena
observatory
— Noun
– English
～ a structure commanding a wide view of its surroundings
observed fire
— Noun
– English
～ fire for which the point of impact (the burst) can be seen by an observer; fire can be adjusted on the basis of the observations
observer
— Noun
– English
～ a person who becomes aware (of things or events) through the senses
observer
— Noun
– English
～ an expert who observes and comments on something
observer's meridian
— Noun
– English
～ a meridian that passes through the observer's zenith
obsession
— Noun
– English
～ an unhealthy and compulsive preoccupation with something or someone
obsession
— Noun
– English
～ an irrational motive for performing trivial or repetitive actions, even against your will; "her compulsion to wash her hands repeatedly"
obsessive
— Noun
– English
～ a person who has obsessions
obsessive-compulsive disorder
— Noun
– English
～ an anxiety disorder characterized by recurrent and persistent thoughts and feelings and repetitive, ritualized behaviors
obsessive-compulsive
— Noun
– English
～ a person with obsessive-compulsive characteristics
obsessiveness
— Noun
– English
～ extreme compulsiveness
obsessivity
— Noun
– English
～ extreme compulsiveness
obsidian
— Noun
– English
～ acid or granitic glass formed by the rapid cooling of lava without crystallization; usually dark, but transparent in thin pieces
obsolescence
— Noun
– English
～ the process of becoming obsolete; falling into disuse or becoming out of date; "a policy of planned obsolescence"
obsoleteness
— Noun
– English
～ the property of being out of date and not current