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In my view, the Christian religion is the most important and one of the first things in which all children, under a free government ought to be instructed... No truth is more evident to my mind than that the Christian religion must be the basis of any government intended to secure the rights and privileges of a free people.
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1828 Noah Webster Dictionary
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1828.mshaffer.com › Word [irritability]

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irritability

IRRITABIL'ITY, n. [from irritable.] Susceptibility of excitement; the quality of being easily irritated or exasperated; as irritability of temper.

1. In physiology, one of the four faculties of the sensorium, by which fibrous contractions are caused in consequence of the irritations excited by external bodies.

Irritability differs from sensibility; the most irritable parts of the body not being at all sensible, and vice versa. The heart is endued with the greatest irritability.


Evolution (or devolution) of this word [irritability]

1828 Webster1844 Webster1913 Webster

IRRITABIL'ITY, n. [from irritable.] Susceptibility of excitement; the quality of being easily irritated or exasperated; as irritability of temper.

1. In physiology, one of the four faculties of the sensorium, by which fibrous contractions are caused in consequence of the irritations excited by external bodies.

Irritability differs from sensibility; the most irritable parts of the body not being at all sensible, and vice versa. The heart is endued with the greatest irritability.

IR-RI-TA-BIL'I-TY, n. [from irritable.]

  1. Susceptibility of excitement; the quality of being easily irritated or exasperated; as, irritability of temper.
  2. In physiology, one of the four faculties of the sensorium, by which fibrous contractions are caused in consequence of the irritations excited by external bodies. Darwin. Irritability differs from sensibility; the most irritable parts of the body not being at all sensible, and vice versa. The heart is endued with the greatest irritability. Haller. Encyc.

Ir`ri*ta*bil"i*ty
  1. The state or quality of being irritable; quick excitability; petulance; fretfulness; as, irritability of temper.
  2. A natural susceptibility, characteristic of all living organisms, tissues, and cells, to the influence of certain stimuli, response being manifested in a variety of ways, -- as that quality in plants by which they exhibit motion under suitable stimulation; esp., the property which living muscle possesses, of responding either to a direct stimulus of its substance, or to the stimulating influence of its nerve fibers, the response being indicated by a change of form, or contraction; contractility.
  3. A condition of morbid excitability of an organ or part of the body; undue susceptibility to the influence of stimuli. See Irritation, n., 3.
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Irritability

IRRITABIL'ITY, noun [from irritable.] Susceptibility of excitement; the quality of being easily irritated or exasperated; as irritability of temper.

1. In physiology, one of the four faculties of the sensorium, by which fibrous contractions are caused in consequence of the irritations excited by external bodies.

Irritability differs from sensibility; the most irritable parts of the body not being at all sensible, and vice versa. The heart is endued with the greatest irritability

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Word of the Day

importance

IMPORT'ANCE, n.

1. Weight; consequence; a bearing on some interest; that quality of any thing by which it may affect a measure, interest or result. The education of youth is of great importance to a free government. A religious education is of infinite importance to every human being.

2. Weight or consequence in the scale of being.

Thy own importance know.

Nor bound thy narrow views to things below.

3. Weight or consequence in self-estimation.

He believes himself a man of importance.

4. Thing implied; matter; subject; importunity. [In these senses, obsolete.]

Random Word

stage

STAGE, n. [G.] Properly, one step or degree of elevation, and what the French call etage, we call a story. Hence,

1. A floor or platform of any kind elevated above the ground or common surface, as for an exhibition of something to pubic view; as a stage for a mountebank; a stage for speakers in public; a stage for mechanics. Seamen use floating stages, and stages suspended by the side of a ship, for calking and repairing.

2. The floor on which theatrical performances are exhibited, as distinct from the pit, &c. Hence,

3. The theater; the place of scenic entertainments.

Knights, squires and steeds must enter on the stage.

4. Theatrical representations. It is contended that the stage is a school or morality. Let it be inquired, where is the person whom the stage has reformed?

5. A place where any thing is publicly exhibited.

When we are born, we cry that we are come to this great stage of fools.

6. Place of action or performance; as the stage of life.

7. A place of rest on a journey, or where a relay of horses is taken. When we arrive at the next stage, we will take some refreshment. Hence,

8. The distance between two places of rest on a road; as a stage of fifteen miles.

9. A single step; degree of advance; degree of progression, either in increase or decrease, in rising or falling, or in any change of state; as the several stages of a war; the stages of civilization or improvement; stages of growth in an animal or plant; stages of a disease, of decline or recovery; the several stages of human life.

10. [instead of stage-coach, or stage-wagon.] A coach or other carriage running regularly from one place to another for the conveyance of passengers.

I went in the six-penny stage.

A parcel sent by the stage. American usage.

STAGE, v.t. To exhibit publicly. [Not in use.]

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