Defn: To thicken or bring to greater consistence, as fluids by evaporation.

INSPISSATE
In*spis"sate, a. Etym: [L. inspissatus, p. p.]

Defn: Thick or thickened; inspissated. Greenhill.

INSPISSATION
In`spis*sa"tion, n.

Defn: The act or the process of inspissating, or thickening a fluid substance, as by evaporation; also, the state of being so thickened.

INSTABILITY
In`sta*bil"i*ty, n.; pl. Instabilities. Etym: [L. instabilitas: cf.
F. instabilité.]

1. The quality or condition of being unstable; want of stability, firmness, or steadiness; liability to give way or to fail; insecurity; precariousness; as, the instability of a building.

2. Lack of determination of fixedness; inconstancy; fickleness; mutability; changeableness; as, instability of character, temper, custom, etc. Addison.

Syn. — Inconstancy; fickleness; changeableness; wavering; unsteadiness; unstableness.

INSTABLE In*sta"ble, a. Etym: [L. instabilis: cf. F. instable. See In- not, and Stable, a., and cf. Unstable.]