Reduction in size of an organ or part (as in the return of the uterus to normal size after childbirth).

Roget 85: numeration; numbering etc. v.; pagination; tale, recension^†, enumeration, summation, reckoning, computation, supputation^†; calculation, calculus; algorithm, algorism^†, rhabdology^†, dactylonomy^†; measurement etc. 466; statistics.    arithmetic, analysis, algebra, geometry, analytical geometry, fluxions^†; differential calculus, integral calculus, infinitesimal calculus; calculus of differences.    [Statistics] dead reckoning, muster, poll, census, capitation, roll call, recapitulation; account etc. (list) 86.    [Operations] notation, , addition, subtraction, multiplication, division, rule of three, practice, equations, extraction of roots, reduction, involution, evolution, estimation, approximation, interpolation, differentiation, integration.    [Instruments] abacus, logometer^†, slide rule, slipstick [Coll.], tallies, Napier's bones, calculating machine, difference engine, suan-pan^†; adding machine; cash register; electronic calculator, calculator, computer; [people who calculate] arithmetician, calculator, abacist^†, algebraist, mathematician; statistician, geometer; programmer; accountant, auditor.    ... show more

Roget 248: winding etc. v.; convolution, involution, circumvolution; wave, undulation, tortuosity, anfractuosity^†; sinuosity, sinuation^†; meandering, circuit, circumbendibus^†, twist, twirl, windings and turnings, ambages^†; torsion; inosculation^†; reticulation etc. (crossing) 219; rivulation^†; roughness etc. 256.    coil, roll, curl; buckle, spiral, helix, corkscrew, worm, volute, rundle; tendril; scollop^†, scallop, escalop^†; kink; ammonite, snakestone^†.    serpent, eel, maze, labyrinth.    knot.    ... show more

Roget 571: obscurity etc. (unintelligibility) 519; involution; hard words; ambiguity etc. 520; unintelligibleness; vagueness etc. 475, inexactness etc. 495; what d'ye call 'em etc. (neologism) 563^†; darkness of meaning.    ... show more

Polish: rozwój wsteczny, inwolucja

A long and intricate and complicated grammatical construction.

Marked by elaborately complex detail.

synonyms: elaborateness, elaboration, intricacy.

Roget 59a: complexity; complexness etc. adj.; complexus^†; complication, implication; intricacy, intrication^†; perplexity; network, labyrinth; wilderness, jungle; involution, raveling, entanglement; coil etc. (convolution) 248; sleave^†, tangled skein, knot, Gordian knot, wheels within wheels; kink, gnarl, knarl^†; webwork^†.    [complexity if a task or action] difficulty etc. 704.    ... show more

Dutch: verwikkeling
Polish: misterność

The act of sharing in the activities of a group.

synonyms: engagement, involvement, participation.

Dutch: betrokkenheid, deelname, deelneming, engagement, geëngageerdheid, participatie
Polish: uczestniczenie

The process of raising a quantity to some assigned power.

synonym: exponentiation.

Dutch: machtsverheffen, machtsverheffing
Polish: inwolucja

The action of enfolding something.

synonym: enfolding.