-al; -ial, -eal

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

alluvial soil (s)  (noun), alluvial soils (pl)
Fine-grained fertile earth deposited by water flowing over flood plains or in river beds: Keith and the other farmers near the mouth of the river found that the alluvial soils were much more fertile than the land farther away from the river.

Alluvial soil is rich and fertile earth and can be found in aquatic communities (living in or on water for all or a substantial part of the life span and is generally restricted to fresh water or inland waters).

alphabetical
1. Arranged or listed in the customary order of the letters of the alphabet.
2. Based on, typical of, or relating to an alphabet.
ambrosial
1. Suggestive of ambrosia; fragrant or delicious.
2. Exceptionally pleasing to taste or smell; especially, delicious or fragrant.
3. Of or worthy of the gods; divine.
amburbial (adjective), more amburbial, most amburbial
1. A reference to the circuit, or journey, around a city: "Many tourists have been making amburial walks or tours of Rome for centuries."
2. Etymology: from Latin ambi-, "around, both, in two ways"; which is directly related to ambo-, "both" + urbanus, "belonging to the city or town"; from urbs, urbis, "a city".
amential
A reference to, or relating to, amentia.
anatomical
anconeal
1. A reference to the elbow or to the anconeus muscle.
2. A reference to the elbow.
2. Pertaining to the ulna or to the forearm.
anhedral
animal (AN uh muhl) (s) (noun), animals (pl)
1. An organism of the kingdom Animalia, distinguished from plants by certain characteristics: Animals have the power of locomotion, fixed structure, and limited growth.

An animal is a creature that is distinguished from plants by having independent movements and responsive sense organs.

2. Any member of the kingdom "Animalia", comprising of multicellular organisms that have a well-defined shape and usually limited growth, can move voluntarily, actively acquire food and digest it internally, and have sensory and nervous systems that allow them to respond rapidly to stimuli: Some animals are restricted to being quadrupeds and applied; especially, to such as those that are used by man, as a horse, a donkey, or a dog.
3. Etymology: from Latin animale, "living being, a being which breathes."

An older definition from the 1755 Dictionary of the English Language

Animals are such beings, which, besides the power of growing, and producing their kind, as plants and vegetables have, are endowed also with sensation and spontaneous motion.

—Dr. Samuel Johnson, A Dictionary of the English Language, 1st ed., 1755
anoperineal
A reference to the anus and the perineum (the region between the thighs, bounded in the male by the scrotum and anus and in the female by the vulva and anus).
antebrachial
antediluvial
antenuptial (adjective) (not comprable
Relating to events before a marriage: Margaret and Michael had an antenuptial agreement as to when and where their wedding would take place.
anteprandial
Before dinner.
anteromedial
1. In front of and toward the middle line.
2. In medicine, situated anteriorly and to the medial side; preferred to anterointernal.