English-Thai Dictionary

involution

N การ พัวพัน  การ ยุ่งเกี่ยว  involvement entanglement kan-pue-pan

 

Webster's 1828 Dictionary

INVOLUTION

n.[L. involutio. See Involve. ] 1. The action of involving or infolding.
2. The state of being entangled or involved; complication.
All things are mixed and causes blended by mutual involutions.
3. In grammar, the insertion of one or more clauses or members of a sentence between the agent or subject and the verb; a third intervening member within a second, etc. ; as, habitual falsehood, if we may judge from experience, infers absolute depravity.
4. In algebra, the raising of a quantity from its root to any power assigned. Thus 2x2x2 =8. Here 8, the third power of 2, is found in involution, or multiplying the number into itself, and the product by the same number.

 

Webster's 1913 Dictionary

INVOLUTION

In `vo *lu "tion, n. Etym: [L. involutio: cf. F. involution. See Involve. ]

 

1. The act of involving or infolding.

 

2. The state of being entangled or involved; complication; entanglement. All things are mixed, and causes blended, by mutual involutions. Glanvill.

 

3. That in which anything is involved, folded, or wrapped; envelope. Sir T. Browne.

 

4. (Gram. )

 

Defn: The insertion of one or more clauses between the subject and the verb, in a way that involves or complicates the construction.

 

5. (Math. )

 

Defn: The act or process of raising a quantity to any power assigned; the multiplication of a quantity into itself a given number of times; -- the reverse of evolution.

 

6. (Geom.)

 

Defn: The relation which exists between three or more sets of points, a.a', b.b', c.c', so related to a point O on the line, that the product Oa. Oa' = Ob. Ob' = Oc. Oc' is constant. Sets of lines or surfaces possessing corresponding properties may be in involution.

 

7. (Med. )

 

Defn: The return of an enlarged part or organ to its normal size, as of the uterus after pregnancy.

 

New American Oxford Dictionary

involution

in vo lu tion |ˌinvəˈlo͞oSHən ˌɪnvəˈluʃən | ▶noun 1 Physiology the shrinkage of an organ in old age or when inactive, e.g., of the uterus after childbirth. 2 Mathematics a function, transformation, or operator that is equal to its inverse, i.e., which gives the identity when applied to itself. 3 formal the process of involving or complicating, or the state of being involved or complicated: periods of artistic involution. DERIVATIVES in vo lu tion al |-SHənl |adjective, in vo lu tion ar y |-ˌnerē |adjective ORIGIN late Middle English (in the sense ‘[part ] curling inward ’): from Latin involutio (n- ), from involvere (see involve ).

 

Oxford Dictionary

involution

in |vo ¦lu ¦tion |ɪnvəˈl (j )uːʃ (ə )n | ▶noun 1 [ mass noun ] Physiology the shrinkage of an organ in old age or when inactive, e.g. of the womb after childbirth. 2 Mathematics a function, transformation, or operator that is equal to its inverse, i.e. which gives the identity when applied to itself. 3 [ mass noun ] formal the process of complicating something, or the state of being complicated: periods of artistic involution. DERIVATIVES involutional adjective ORIGIN late Middle English (in the sense (‘part ) curling inwards ’): from Latin involutio (n- ), from involvere (see involve ).

 

Duden Dictionary

Involution

In vo lu ti on Substantiv, feminin , die |Involuti o n |lateinisch ; »Windung «1 Geometrie Darstellung des Verhältnisses zwischen Punkten, Geraden oder Ebenen in der projektiven Geometrie 2 Medizin normale Rückbildung eines Organs (z. B. der Gebärmutter nach der Entbindung ) oder des ganzen Organismus als Alterungsvorgang 3 a Verfall eines sozialen Organismus b Rückentwicklung demokratischer Systeme und Formen in vor- oder antidemokratische

 

Sanseido Wisdom Dictionary

involution

in vo lu tion /ɪ̀nvəlúːʃ (ə )n /名詞 1 U C 複雑 (なもの ); 内巻き (なもの ).2 U 〘数 〙対合, 累乗 (⇔evolution ).