tard- +
(Latin: slow; sluggish)
Motto of Henry I (918-936) who forced the dukes of Bavaria and Swabia to recognize his authority. He protected Saxony against the Slavs by building several fortresses and by creating a powerful cavalry which he used to defeat the invading Magyars on the Unstrut River in 933.
King Henry succeeded in annexing the key Carolingian realm of Lorraine to the east Franconian realm. He is regarded as the actual founder of the German Empire.
2. A geologic formation that may contain ground water but is incapable of transferring that water to the surface.
3. A bed of low permeability adjacent to an aquifer.
An aquitard may serve as a storage unit for groundwater, although it does not yield water readily.
The term is specifically defined in different nations and by some professional organizations, but no single definition is accepted worldwide.
A marked discordance between the degree of motor retardation and that of social response and alertness, as revealed by testing, may predict either cerebral palsy or a primary intellectual impairment.
2. A slowing down, diminution, or hindrance, as in a machine.
3. To cause to move more slowly or to operate at a slower rate: "This medication could retard your heart rate."
4. To slow the growth or development of something: "The brain damage may retard your child's language development."
5. To lose velocity; to move more slowly.
6. Slang: a reference to a person of subnormal intelligence or someone who is considered to be foolish or socially inept.
2. The process or fact of slowing down.
3. Something that acts as a delay or obstacle to progress.
4. The extent to which something is held back or delayed.
5. Sometimes a reference to the lack of normal development of intellectual capabilities.
2. A major depressive disorder with psychomotor retardation which is a generalized slowing of physical and emotional reaction; such as, that seen in a major depression and in catatonic schizophrenia.
2. Any substance added to rubber to delay or to prevent vulcanization.
3. Any substance added to delay a process of anything.
2. Talking in a slow way or drawing one’s speech out at length.