pumice stone (pumisston)

[Formerly also pumie - stone, pumy - stone; Fire, fall'n from Heav'n, or else by Art incited,.. Or from som Mountains burning bowels throw'n, Repleat with Sulphur, Pitch, and Pumy stone, With sparkling fury spreads. stone. Sylvester, tr. of Du Bartas's Weeks, ii., The Furies. This mountain, and indeed the whole island, is evidently of volcanic origin, and formed of lava, tufo, and pumice Eustace , Italy, III. i. Spenser , Shep. Cal., March. [ pumex And threwe. Pumie stones I hastly hent ing of fine powder; powdery: as, calcareous stone is sometimes the pulverulent pulvinately (pul'vi-nāt-li), adv . In bot . , in a pulvinate manner. form.-2. In zoöl ., finely powdery or dusty, as a surface; especially, covered as if powdered pulvini, n. Plural of pulvinus . with very minute scales, as an insect.-3. In pulvini form (pul-vin'i-form), a . [L. pulvi- bot .: ( a ) Covered as if with powder or dust; pulver a ceo us: said of surfaces. (b) Of very slight cohesion: said of ti ues. The "thallus," which increases in thickne by the formation of new layers upon its free surface, has no very de fined limit, and, in consequence of the slight adhesion of its components, is said to be " pulverulent." W. B. Carpenter, Micros., $ 325. 4. Addicted to lying and rolling in the dust, as fowls.