syn-, sy-, sym-, syl-, sys-

(Greek: with, together with; also by extension: united; same, similar; at the same time)

asynchronism, ansynchronous
Not coinciding in time; not corresponding in time.
asyndesis (s) (noun), asyndeses (pl)
A pattern of language in which words and phrases are juxtaposed without grammatical linkage as seen in schizophrenic and other mental disorders: "The asyndesis of the readings that the patient presented to the doctor was a language that seemed disjointed and disconnected."

"One of the physician's patients was asked what caused the wind to blow, and she said that the wind was a result of velocity, the loss of air, evaporations of water, contact with trees, and of air in the trees."

asyndetic
A reference to or characterized by the use of asyndeton or the omission of conjunctions in sentence constructions in which they would normally be used.; for example, "His mother prepared him for life with honesty, with a good education, with self-respect." [leaving out "and with self-respect."
asyndeton
Not + fastened or bound together.

A rhetorical figure that gains brevity and force through the omission of connective words. In Julius Caesar's statement, Veni, vidi, vici ("I came, I saw, I conquered"), the conjunction et or "and" has been omitted before vici.

asynechia (s) (noun), asynechias (pl)
Absence of continuity of a structure: "The asynechia of the organization and tissues of the wounded soldier's abdominal area presented medical problems that were almost impossible for the army medics to solve."
asynergy (s) (noun), asynergies (pl)
Lack of coordination among various muscle groups during the performance of complex movements, resulting in a loss of skill and speed: "During the swimming match, her friend experienced a moment of asynergy which caused her to lose speed and resulted in her not being able to perform at her best."
asynesia (s) (noun), asynesias (pl)
Mental dullness; stupidity or lack of practical understanding and comprehension: "Her state of asynesia makes it difficult for her to understand simple and practical directions."
asyntaxia (s) (noun), asyntaxias (pl)
A situation characterized by a lack of typical or orderly embryonic development: "The research project at the veterinarian school was to understand the asyntaxia of specific bovines including cows and bulls."
asystole
The absence of any heartbeat because of a failure of the ventricles of the heart to contract (usually caused by ventricular fibrillation) with a consequent absence of the heart beat leading to oxygen lack and eventually to death.
asystolic
1. A reference to a cardiac standstill or the absence of a heartbeat.
2. Descriptive of a dire form of cardiac arrest in which the heart stops beating (no systole) and there is no electrical activity in the heart.
auditory synesthesia, subjective sound
An auditory sensation that occurs when another sense is stimulated.
autosympathectomy
A permanent peripheral arterial dilatation resulting from the destruction of sympathetic nerve functions by an endogenous process; such as, the neuropathy that accompanies diabetes mellitus.
autosynnoia
1. Self-preoccupation to such a degree that no attention is paid to the outside world.
2. Autism.
autosynthesis
Self-reproduction; self-replication.
bawsymbephile, bawsymbephilist
A collector of brothel tickets.

Inter-related cross references, directly or indirectly, involving word units dealing with "equal, identical, same, similar": auto-; emul-; equ-, equi-; homeo-; homo-; iso-; pari-; peer; rhomb-; tauto-.