(Greek: a suffix; pertaining to; of the nature of, like; in chemistry, it denotes a higher valence of the element than is expressed by -ous)

audiogenic (adjective) (not comparable)
Produced by sound or occurring as a result of the exposure to sound: An epiloptoid response or an audiogenic seizure can be caused by a very loud sound or noises.
audiometric (adjective) (not comparable)
A reference to the measurement of hearing, as by means of an audiometer: Joan was interested in the audiometric assessments of her mother's auditory acuity.

An audiomnetric measurement of hearing levels is processed by an audiometer.

auditopsychic (adjective) (not comparable)
Referring to the auditory association areas of the temporal cortex of the brain: Dr. Goodness informed the students in his seminar about the auditopsychic region of the cerebrum or brain that was responsible for hearing and understanding.
Of or pertaining to a pipe (flute) or piper.
1. A reference to a non-parasitic plant growing, or living, within in a hollow cavity in another plant.
2. Descriptive of a plant that lives sheltered within a cavity of another plant.
Showing evidence of autism, e.g., a disturbance in psychological development in which use of language, reaction to stimuli, interpretation of the world, and the formation of relationships are not fully established and follow unusual patterns.
autochthonic (adjective) (not comparable)
A reference to anything that originates where it is found; aboriginal; indigenous: California poppies are considered to be autochthonic and are native to the western United States.
A reference to rock which has been fragmented in place as a result o mechanical processes or orogenic (mountain formation) forces .
autocratic (adjective), more autocratic, most autocratic
Of the nature of, or pertaining to someone who has absolute authority; referring to a despotic ruler: A few autocratic rulers in the past were Adolf Hitler, Napoleon Bonaparte, and Queen Elizabeth I. Today Vladimir Putin is considered to be an autocratic leader.
A reference to one's own skin; used especially in reference to autografts.
autodidactic (adjective), more autodidactic, most autodidactic
Relating to or characteristic of being self-taught: The autodidactic education that Sam acquired during the years he was being homeschooled are considered quite superior.
1. Self-generation.
2. Origination within the organism.
1. Occurring within a given system.
2. Produced by the activities of living organisms within a system and acting upon that system.