grad-, -grade, -gred, -gree, -gress
(Latin: walk, step, take steps, move around; walking or stepping)
2. To return or revert to an earlier, inferior, or less complex condition; to degenerate or to deteriorate: When Jerry refused to spend any time doing his homework and so not passing his exams, he was retrogressed from going on to the next grade level and having to take the same courses again.
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2. A return to a former and to a less complex level of development or organization: The marine biologists were astonished to note the retrogression in many of the smaller life forms in their study of tidal pool organisms over a period of many years.
3. Etymology: from Latin retrogressus, past participle of retrogradi, "to move backward"; from retro-, "backward" + gradi, "to go, to step".
2. Tending to retrograde; that is, going or moving backward; declining from a better to a worse condition or situation.
The middle (gradient) zone acts as a transparent insulator, permitting sunlight to be trapped in the bottom layer (from which useful heat is withdrawn).
This middle layer, which increases in brine density with depth, counteracts the tendency of the warmer water below to rise to the surface and lose heat in the air.
2. Moving by pouncing: One of the most saltigrade species includes a tribe of leaping spiders; such as, those that lie in wait and jump on their prey.
2. An offense, disobedience, or sin: Participating in Sunday labor used to be considered a serious transgression against God.
A violation of a rule, or to break a law, is to commit a transgression.