-al; -ial, -eal

(Latin: suffix; pertaining to, like, of the kind of, relating to, characterized by, belonging to; action of, process of)

acaricidal (adjective), more acaricidal, most acaricidal
A reference to a substance, or preparation for, killing acarids or mites: "The rug cleaner recommended that the neighbor apply the most acaricidal solution she could find to the rug on a regular basis to control for mites."
acarologically (adverb), more acarologically, most acarologically
Relating to mites and ticks or to the study of mites and ticks.
acaudal (adjective) (not comparable)
Pertaining to being without a tail or not having a tail-like appendage: There are acaudal lizards living in some desert areas.
acausal (adjective) (not comparable)
A reference to not having a basis for any actions nor responses: The doctor's acausal medical report relieved Sidney's anxiety about his medical condition.
accentual (adjective), more accentual, most accentual
1. Involving or associated with stress of pronunciations as with speech, singing, etc.
2. Employing a structure based on the number of stresses in a poetic line instead of the number of syllables.
3. Having a metric system based on stress rather than syllables or quantity.
4. A reference to making something more noticeable: "Harriet likes to wear accentual clothes that attract attention."
accidental (ak" suh DEN t'l) (adjective), more accidental, most accidental
1. An unexpected usually sudden event that occurs without intent or volition although sometimes through carelessness, unawareness, ignorance, or a combination of causes and which produces an unfortunate result (as an injury) for which the affected party may be entitled to relief under the law or to compensation under an insurance policy: "The accidental collision between the two cars was being investigated by the police."
2. Happening by chance; belonging but not essential; unplanned, unintentional, unpremeditated, uncalculated; unexpected, fortuitous; chance, random: "The meeting of Dale and Mike on the street was purely accidental."
accipitral
Pertaining to, or of the nature of, a falcon or hawk; hawklike.
acerebral
acetal
1. A colorless, flammable, volatile liquid used as a solvent.
2. Any of the compounds formed from aldehydes combined with alcohol.
3. Any organic compound formed by adding alcohol molecules to aldehyde molecules; etymology: acet(o)– + al(cohol).
acheiral, achiral
A description of a molecule that has neither a left-handed nor a right-handed configuration.
acousticofacial (adjective), more acousticofacial, most acousticofacial
Relating to both the eighth (auditory) and seventh (facial) cranial nerves: As a result of an automobile accident, Herbert suffered severe acousticofacial damage on the lower right side of his head, which affected both his hearing and facial functions.
acquittal (s) (noun), acquittals (pl)
1. A judgement or decision, as by a judge or by a jury, that a defendant is not guilty of a crime as charged and is free to go: The trial resulted in an acquittal of Bryan because he was not even in the neighborhood when and where the woman was robbed.
2. Etymology: from Latin ad, "to" + quitare, "to set free, to clear".
A legal decision by a judge or a jury that a person is not guilty of a criminal act.
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acritical (adjective), more acritical, most acritical
In medicine, not marked by trouble or danger.
acromiohumeral
A reference to the acromion (lateral triangular projection of the spine of the scapula that forms the point of the shoulder and the joints where separations occur naturally with the clavicle) and the humerus (upper arm).
acromion, acromial
The lateral extension of the spine of the scapula, projecting over the shoulder joint and forming the highest point of the shoulder.