v. t. [ imp. & p. p. Indicated p. pr. & vb. n. Indicating ] [ L. indicatus, p. p. of indicare to indicate; pref. in- in + dicare to proclaim; akin to dicere to say. See Diction, and cf. Indict, Indite. ] [ 1913 Webster ]

1. To point out; to discover; to direct to a knowledge of; to show; to make known. [ 1913 Webster ]

That turns and turns to indicate
From what point blows the weather. Cowper. [ 1913 Webster ]

2. (Med.) To show or manifest by symptoms; to point to as the proper remedies; as, great prostration of strength indicates the use of stimulants. Opposite of contraindicate. [ 1913 Webster +PJC ]

3. (Mach.) To investigate the condition or power of, as of steam engine, by means of an indicator.

Syn. -- To show; mark; signify; denote; discover; evidence; evince; manifest; declare; specify; explain; exhibit; present; reveal; disclose; display. [ 1913 Webster ]

a. Shown; denoted; registered; measured. [ 1913 Webster ]

Indicated power. See Indicated horse power, under Horse power. [ 1913 Webster ]

n. [ L. indicatio: cf. F. indication. ] [ 1913 Webster ]

1. Act of pointing out or indicating. [ 1913 Webster ]

2. That which serves to indicate or point out; mark; token; sign; symptom; evidence. [ 1913 Webster ]

The frequent stops they make in the most convenient places are plain indications of their weariness. Addison. [ 1913 Webster ]

3. Discovery made; information. Bentley. [ 1913 Webster ]

4. Explanation; display. [ Obs. ] Bacon. [ 1913 Webster ]

5. (Med.) Any symptom or occurrence in a disease, which serves to direct to suitable remedies. Opposite of contraindication.

Syn. -- Proof; demonstration; sign; token; mark; evidence; signal. [ 1913 Webster ]

n. (Gram.) The indicative mood. [ 1913 Webster ]

a. [ L. indicativus: cf. F. indicatif. ] [ 1913 Webster ]

1. Pointing out; bringing to notice; giving intimation or knowledge of something not visible or obvious. [ 1913 Webster ]

That truth is productive of utility, and utility indicative of truth, may be thus proved. Bp. Warburton. [ 1913 Webster ]

2. (Fine Arts) Suggestive; representing the whole by a part, as a fleet by a ship, a forest by a tree, etc. [ 1913 Webster ]

Indicative mood (Gram.), that mood or form of the verb which indicates, that is, which simply affirms or denies or inquires; as, he writes; he is not writing; has the mail arrived? [ 1913 Webster ]

adv. In an indicative manner; in a way to show or signify. [ 1913 Webster ]

n. [ L.: cf. F. indicateur. ] [ 1913 Webster ]

1. One who, or that which, shows or points out; as, a fare indicator in a street car. [ 1913 Webster ]

2. (Mach.) A pressure gauge; a water gauge, as for a steam boiler; an apparatus or instrument for showing the working of a machine or moving part; as: (a) (Steam Engine) An instrument which draws a diagram showing the varying pressure in the cylinder of an engine or pump at every point of the stroke. It consists of a small cylinder communicating with the engine cylinder and fitted with a piston which the varying pressure drives upward more or less against the resistance of a spring. A lever imparts motion to a pencil which traces the diagram on a card wrapped around a vertical drum which is turned back and forth by a string connected with the piston rod of the engine. See Indicator card (below). (b) A telltale connected with a hoisting machine, to show, at the surface, the position of the cage in the shaft of a mine, etc. [ 1913 Webster ]

3. (Mech.) The part of an instrument by which an effect is indicated, as an index or pointer. [ 1913 Webster ]

4. (Zool.) Any bird of the genus Indicator and allied genera. See Honey guide, under Honey. [ 1913 Webster ]

5. (Chem.) That which indicates the condition of acidity, alkalinity, or the deficiency, excess, or sufficiency of a standard reagent, by causing an appearance, disappearance, or change of color, as in titration or volumetric analysis. [ 1913 Webster ]

☞ The common indicators are litmus, tropæolin, phenol phthalein, potassic permanganate, etc. [ 1913 Webster ]

Indicator card, the figure drawn by an engine indicator, by means of which the working of the engine can be investigated and its power calculated. The Illustration shows one form of indicator card, from a steam engine, together with scales by which the pressure of the steam above or below that of the atmosphere, corresponding to any position of the engine piston in its stroke, can be measured. Called also indicator diagram. --
Indicator telegraph, a telegraph in which the signals are the deflections of a magnetic needle, as in the trans-Atlantic system. [ 1913 Webster ]

a. Serving to show or make known; showing; indicative; signifying; implying. [ 1913 Webster ]

n. [ NL. ] (Geom. of Three Dimensions) A certain conic section supposed to be drawn in the tangent plane to any surface, and used to determine the accidents of curvature of the surface at the point of contact. The curve is similar to the intersection of the surface with a parallel to the tangent plane and indefinitely near it. It is an ellipse when the curvature is synclastic, and an hyperbola when the curvature is anticlastic. [ 1913 Webster ]