ideo-

(Greek: idea, form, appearance; class, species, model; general principle)

ideaphobia (s), ideaphobias (pl) (nouns)
An abnormal fear regarding thoughts that a person has about how to do something or how to deal with it: Erin's ideaphobias often interfered with his making any reasonable decisions.
ideocracy
A government founded on theory or abstract ideas.
ideofact (s), ideofacts (pl) (nouns)
An object whose function is to express or to symbolize the beliefs of certain people rather than to serve any practical or social needs.
ideoglandular
ideogram
1. A symbol used in some writing systems, e.g., those of Japan and China, that directly but abstractly represents the thing or concept itself rather than the word for it.
2. A symbol or graphic character; such as, @ or &, and Arabic numerals: 1, 2, 3, etc.
ideogrammatic
1. Referring to a symbol used in some writing systems; such as, those of Japan and China, that directly but abstractly represents a thing or concept itself rather than the word for it.
2. Characterized by a symbol, or graphic character, used to represent a word; for example, "@" or "&".
ideograph (s), ideographs (pl) (nouns)
ideography
A character or symbol representing an idea or a thing without expressing the pronunciation of a particular word or words for it, as in the traffic sign commonly used for “no parking” or “parking prohibited.”
ideologial
ideologist
ideologue
ideology
ideometer
ideomotor
ideomotor apraxia, ideokinetic apraxia (s); ideomotor apraxias, ideokinetic apraxias (pl) (nouns)
A disorder in which simple acts can not be performed in sequences or a continuous series of actions: "The ailments known as ideomotor apraxia and ideokinetic apraxia handicap people because they have nervous-system disorders that result in deficits in the execution of movements due to the inability of accessing the neural instructions to the muscles."

"Those neural instructions were stored by previous motor experiences when simple-single acts could be performed but those who have ideomotor apraxias can't do a sequence of associated actions."

Inter-related cross references, directly or indirectly, involving word units dealing with "form, shape, appearance": eido-; figur-; form-; icono-; imag-; morpho-; -oid; typo-.