retrograde


retrograde
1. Moving backward. 2. Degenerating; reversing the normal order of growth and development. [L. retrogradus, fr. retro- + gradior, to go]

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ret·ro·grade 're-trə-.grād adj
1) characterized by retrogression
2) affecting a period immediately prior to a precipitating cause <\retrograde amnesia>
3) occurring or performed in a direction opposite to the normal or forward direction of conduction or flow: as
a) occurring along nerve cell processes toward the cell body <\retrograde axonal transport> <\retrograde degeneration of nerve fibers>
b) occurring opposite to the normal direction or path of blood circulation <apply bandaging to the lower extremities to produce pressure to reduce \retrograde blood flow in veins with incompetent valves> compare ANTEROGRADE (2)
ret·ro·grade·ly adv

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adj.
going backwards, or moving in the opposite direction to the normal. (See pyelography.) Retrograde amnesia is a failure to remember events immediately preceding an illness or injury.

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ret·ro·grade (retґro-grād) [retro- + L. gradi to step] 1. moving backward or against the usual direction of flow. 2. degenerating, deteriorating, or catabolic.

Medical dictionary. 2011.

Synonyms:

Look at other dictionaries:

  • rétrograde — [ retrɔgrad ] adj. • XIVe; lat. retrogradus, rac. gradi; cf. grade, graduel ♦ Qui va en arrière. 1 ♦ Math. Sens rétrograde, opposé au sens direct. Rotation dans le sens rétrograde, dans le sens des aiguilles d une montre. ⇒ dextrorsum .… …   Encyclopédie Universelle

  • Retrograde — Re tro*grade, a. [L. retrogradus, from retrogradi, retrogressus, to retrograde; retro back + gradi to step: cf. F. r[ e]trograde. See {Grade}.] 1. (Astron.) Apparently moving backward, and contrary to the succession of the signs, that is, from… …   The Collaborative International Dictionary of English

  • Retrograde — may refer to: * Retrograde signaling, in neuroscience * Retrograde, a type of musical permutation * Retrograde and direct motion, the movement of an astronomical object * Retrograde ejaculation, in medicine * Retrograde menstruation occurs… …   Wikipedia

  • Retrograde — Rétrograde Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom …   Wikipédia en Français

  • Retrograde — Re tro*grade, v. i. [imp. & p. p. {Retrograded}; p. pr. & vb. n. {Retrograding}.] [L. retrogradare, retrogradi: cf. F. r[ e]trograder.] 1. To go in a retrograde direction; to move, or appear to move, backward, as a planet. [1913 Webster] 2. Hence …   The Collaborative International Dictionary of English

  • retrograde — adj *backward, retrogressive, regressive Analogous words: reversed, inverted (see REVERSE vb): relapsing, lapsing, backsliding (see LAPSE vb) retrograde vb *recede, retreat, back, retract Analogous words: *retur …   New Dictionary of Synonyms

  • retrograde — ► ADJECTIVE 1) directed or moving backwards. 2) (of the order of something) reversed; inverse. 3) reverting to an earlier and inferior condition. 4) chiefly Astronomy proceeding in a reverse direction from normal, especially (of planetary motion) …   English terms dictionary

  • retrograde — [re′trə grād΄] adj. [ME < L retrogradus < retrogradi, to go backward: see RETRO & GRADE] 1. moving or directed backward; retiring or retreating 2. inverse or reverse: said of order 3. going back or tending to go back to an earlier, esp.… …   English World dictionary

  • retrograde — index decadent, decay, depreciate, deteriorate, recidivate, regress, regressive, relapse, return ( …   Law dictionary

  • retrograde — late 14c., originally of the apparent motions of planets, from L. retrogradus going backward, from retrogradi move backward, from retro backward (see RETRO (Cf. retro )) + gradi to go, step (see GRADE (Cf. grade) (n.)). General sense of tending… …   Etymology dictionary

  • retrograde — Retrograde. adj. Il ne se dit que des Planetes, lorsqu elles se meuvent contre l ordre des signes, qu elles vont du Taureau, par exemple dans le Belier. Les Planetes paroissent plus grandes quand elles sont retrogrades. le soleil ni la lune ne… …   Dictionnaire de l'Académie française


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