Base (bās), a. [OE. bass, F.
bas, low, fr. LL. bassus thick, fat, short, humble; cf. L.
Bassus, a proper name, and W. bas shallow. Cf. Bass a
part in music.] 1. Of little, or less than the usual,
height; of low growth; as, base shrubs. [Archaic]
2. Low in place or position. [Obs.]
3. Of humble birth; or low degree; lowly;
mean. [Archaic] "A peasant and base swain." Bacon.
4. Illegitimate by birth; bastard.
Why bastard? wherefore base?
5. Of little comparative value, as metal inferior
to gold and silver, the precious metals.
6. Alloyed with inferior metal; debased; as,
base coin; base bullion.
7. Morally low. Hence: Low-minded; unworthy;
without dignity of sentiment; ignoble; mean; illiberal; menial; as, a
base fellow; base motives; base occupations. "A
cruel act of a base and a cowardish mind." Robynson (More's
Utopia). "Base ingratitude." Milton.
8. Not classical or correct. "Base
9. Deep or grave in sound; as, the base tone
of a violin. [In this sense, commonly written bass.]
10. (Law) Not held by honorable service; as,
a base estate, one held by services not honorable; held by
villenage. Such a tenure is called base, or low, and the tenant, a
Base fee, formerly, an estate held at the will of
the lord; now, a qualified fee. See note under Fee,
n., 4. -- Base metal. See
Syn. -- Dishonorable; worthless; ignoble; low-minded; infamous;
sordid; degraded. -- Base, Vile, Mean. These words,
as expressing moral qualities, are here arranged in the order of their
strength, the strongest being placed first. Base marks a high degree
of moral turpitude; vile and mean denote, in different
degrees, the want of what is valuable or worthy of esteem. What is
base excites our abhorrence; what is vile provokes our
disgust or indignation; what is mean awakens contempt. Base
is opposed to high-minded; vile, to noble; mean, to liberal
or generous. Ingratitude is base; sycophancy is vile; undue
compliances are mean.
Base, n. [F. base, L. basis,
fr. Gr. ba`sis a stepping, step, a base, pedestal, fr.
bai`nein to go, step, akin to E. come. Cf. Basis,
and see Come.] 1. The bottom of anything,
considered as its support, or that on which something rests for support;
the foundation; as, the base of a statue. "The base of
mighty mountains." Prescott.
2. Fig.: The fundamental or essential part of a
thing; the essential principle; a groundwork.
3. (Arch.) (a) The lower
part of a wall, pier, or column, when treated as a separate feature,
usually in projection, or especially ornamented. (b)
The lower part of a complete architectural design, as of a monument;
also, the lower part of any elaborate piece of furniture or
4. (Bot.) That extremity of a leaf, fruit,
etc., at which it is attached to its support.
5. (Chem.) The positive, or non-acid
component of a salt; a substance which, combined with an acid, neutralizes
the latter and forms a salt; -- applied also to the hydroxides of the
positive elements or radicals, and to certain organic bodies resembling
them in their property of forming salts with acids.
6. (Pharmacy) The chief ingredient in a
7. (Dyeing) A substance used as a
8. (Fort.) The exterior side of the polygon,
or that imaginary line which connects the salient angles of two adjacent
9. (Geom.) The line or surface constituting
that part of a figure on which it is supposed to stand.
10. (Math.) The number from which a
mathematical table is constructed; as, the base of a system of
11. [See Base low.] A low, or deep, sound.
(Mus.) (a) The lowest part; the deepest male voice.
(b) One who sings, or the instrument which plays,
base. [Now commonly written bass.]
The trebles squeak for fear, the bases roar.
12. (Mil.) A place or tract of country,
protected by fortifications, or by natural advantages, from which the
operations of an army proceed, forward movements are made, supplies are
13. (Mil.) The smallest kind of
14. (Zoöl.) That part of an organ by
which it is attached to another more central organ.
15. (Crystallog.) The basal plane of a
16. (Geol.) The ground mass of a rock,
especially if not distinctly crystalline.
17. (Her.) The lower part of the field. See
18. The housing of a horse. [Obs.]
19. pl. A kind of skirt (often of velvet or
brocade, but sometimes of mailed armor) which hung from the middle to about
the knees, or lower. [Obs.]
20. The lower part of a robe or petticoat.
21. An apron. [Obs.] "Bakers in their linen
22. The point or line from which a start is made; a
starting place or a goal in various games.
To their appointed base they went.
23. (Surv.) A line in a survey which, being
accurately determined in length and position, serves as the origin from
which to compute the distances and positions of any points or objects
connected with it by a system of triangles. Lyman.
24. A rustic play; -- called also prisoner's
base, prison base, or bars. "To run the country
25. (Baseball) Any one of the four bounds
which mark the circuit of the infield.
Altern base. See under Altern. --
Attic base. (Arch.) See under
Attic. -- Base course. (Arch.)
(a) The first or lower course of a foundation wall,
made of large stones or a mass of concrete; -- called also foundation
course. (b) The architectural member forming the
transition between the basement and the wall above. -- Base
hit (Baseball), a hit, by which the batsman, without
any error on the part of his opponents, is able to reach the first base
without being put out. -- Base line.
(a) A main line taken as a base, as in surveying or in
military operations. (b) A line traced round a
cannon at the rear of the vent. -- Base plate,
the foundation plate of heavy machinery, as of the steam engine; the
bed plate. -- Base ring (Ordnance), a
projecting band of metal around the breech, connected with the body of the
gun by a concave molding. H. L. Scott.
Base (bās), v. t. [imp. & p.
p. Based (bāsd); p. pr. & vb. n.
Basing.] [From Base, n.] To put on a
base or basis; to lay the foundation of; to found, as an argument or
conclusion; -- used with on or upon. Bacon.
Base, v. t. [See Base,
a., and cf. Abase.] 1. To
abase; to let, or cast, down; to lower. [Obs.]
If any . . . based his pike.
Sir T. North.
2. To reduce the value of; to debase.
Metals which we can not base.