Hypertext Webster Gateway: "progression"

From Webster's Revised Unabridged Dictionary (1913) (web1913)

Progression \Pro*gres"sion\, n. [L. progressio: cf. F.
progression.]
1. The act of moving forward; a proceeding in a course;
motion onward.

2. Course; passage; lapse or process of time.

I hope, in a short progression, you will be wholly
immerged in the delices and joys of religion.
--Evelyn.

3. (Math.) Regular or proportional advance in increase or
decrease of numbers; continued proportion, arithmetical,
geometrical, or harmonic.

4. (Mus.) A regular succession of tones or chords; the
movement of the parts in harmony; the order of the
modulations in a piece from key to key.

{Arithmetical progression}, a progression in which the terms
increase or decrease by equal differences, as the numbers
[lbrace2]2, 4, 6, 8, 1010, 8, 6, 4, 2[rbrace2] by the
difference 2.

{Geometrical progression}, a progression in which the terms
increase or decrease by equal ratios, as the numbers
[lbrace2]2, 4, 8, 16, 32, 6464, 32, 16, 8, 4, 2[rbrace2]
by a continual multiplication or division by 2.

{Harmonic progression}, a progression in which the terms are
the reciprocals of quantities in arithmetical progression,
as 1/2, 1/4, 1/6, 1/8, 1/10.

From Webster's Revised Unabridged Dictionary (1913) (web1913)

the motion of the point A, of the foot of the perpendicular PA,
when P moves uniformly in the circumference of a circle, and PA
is drawn perpendicularly upon a fixed diameter of the circle.
This is simple harmonic motion. The combinations, in any way, of
two more simple harmonic motions, make other kinds of harmonic
motion. The motion of the pendulum bob of a clock is
approximately simple harmonic motion.

{Harmonic proportion}. See under {Proportion}.

{Harmonic series} or {progression}. See under {Progression}.


{Spherical harmonic analysis}, a mathematical method,
sometimes referred to as that of Laplace's Coefficients,
which has for its object the expression of an arbitrary,
periodic function of two independent variables, in the
proper form for a large class of physical problems,
involving arbitrary data, over a spherical surface, and
the deduction of solutions for every point of space. The
functions employed in this method are called spherical
harmonic functions. --Thomson & Tait.

{Harmonic suture} (Anat.), an articulation by simple
apposition of comparatively smooth surfaces or edges, as
between the two superior maxillary bones in man; -- called
also {harmonic}, and {harmony}.

{Harmonic triad} (Mus.), the chord of a note with its third
and fifth; the common chord.

From WordNet (r) 1.7 (wn)

progression
n 1: a series with a definite pattern of advance [syn: {patterned
advance}]
2: a movement forward; "he listened for the progress of the
troops" [syn: {progress}, {advance}]
3: the act of moving forward toward a goal [syn: {progress}, {advance},
{advancement}, {forward motion}, {onward motion}]


Additional Hypertext Webster Gateway Lookup

Enter word here:
Exact Approx


dict.stokkie.net
Gateway by dict@stokkie.net
stock only wrote the gateway and does not have any control over the contents; see the Webster Gateway FAQ, and also the Back-end/database links and credits.