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Petrescent
a.
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Petrifying; converting into stone; as, petrescent water.
Petrifaction
n.
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The process of petrifying, or changing into stone; conversion of any organic matter (animal or vegetable) into stone, or a substance of stony hardness.
Petrifaction
n.
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The state or condition of being petrified.
Petrifaction
n.
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That which is petrified; popularly, a body incrusted with stony matter; an incrustation.
Petrifaction
n.
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Fig.: Hardness; callousness; obduracy.
Petrifactive
a.
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Having the quality of converting organic matter into stone; petrifying.
Petrifactive
a.
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Pertaining to, or characterized by, petrifaction.
Petrific
a.
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Petrifying; petrifactive.
Petrificate
v. t.
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To petrify.
Petrification
n.
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See Petrifaction.
Petrification
n.
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Fig.: Obduracy; callousness.
Petrified
imp. & p. p.
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of Petrify
Petrifying
p. pr. & vb. n.
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of Petrify
Petrify
v. t.
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To convert, as any animal or vegetable matter, into stone or stony substance.
Petrify
v. t.
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To make callous or obdurate; to stupefy; to paralyze; to transform; as by petrifaction; as, to petrify the heart. Young.
Petrify
v. i.
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To become stone, or of a stony hardness, as organic matter by calcareous deposits.
Petrify
v. i.
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Fig.: To become stony, callous, or obdurate.
Petrine
a.
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Of or pertaining to St.Peter; as, the Petrine Epistles.
Petro-
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A combining form from Gr. / a rock, / a stone; as, petrology, petroglyphic.
Petrogale
n.
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Any Australian kangaroo of the genus Petrogale, as the rock wallaby (P. penicillata).
Petroglyphic
a.
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Of or pertaining to petroglyphy.
Petroglyphy
n.
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The art or operation of carving figures or inscriptions on rock or stone.
Petrographic
a.
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Alt. of Petrographical
Petrographical
a.
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Pertaining to petrography.
Petrography
n.
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The art of writing on stone.
Petrography
n.
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The scientific description of rocks; that department of science which investigates the constitution of rocks; petrology.
Petrohyoid
a.
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Pertaining to petrous, oe periotic, portion of the skull and the hyoid arch; as, the petrohyoid muscles of the frog.
Petrol
n.
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Petroleum.
Petrolatum
n.
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A semisolid unctuous substance, neutral, and without taste or odor, derived from petroleum by distilling off the lighter portions and purifying the residue. It is a yellowish, fatlike mass, transparent in thin layers, and somewhat fluorescent. It is used as a bland protective dressing, and as a substitute for fatty materials in ointments.
Petroleum
n.
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Rock oil, mineral oil, or natural oil, a dark brown or greenish inflammable liquid, which, at certain points, exists in the upper strata of the earth, from whence it is pumped, or forced by pressure of the gas attending it. It consists of a complex mixture of various hydrocarbons, largely of the methane series, but may vary much in appearance, composition, and properties. It is refined by distillation, and the products include kerosene, benzine, gasoline, paraffin, etc.