| slovo | definícia |
paraffin
(encz) | paraffin,parafin n: RNDr. Pavel Piskač |
paraffin
(encz) | paraffin,petrolej n: |
Paraffin
(gcide) | Paraffin \Par"af*fin\ (p[a^]r"[a^]f*f[i^]n), Paraffine
\Par"af*fine\ (p[a^]r"[a^]f*f[i^]n or p[a^]r"[a^]f*f[=e]n), n.
[F. paraffine, fr. L. parum too little + affinis akin. So
named in allusion to its chemical inactivity.] (Chem.)
A white waxy substance, resembling spermaceti, tasteless and
odorless, and obtained from coal tar, wood tar, petroleum,
etc., by distillation. It is used in candles, as a sealing
agent (such as in canning of preserves), as a waterproofing
agent, as an illuminant and as a lubricant. It is very inert,
not being acted upon by most of the strong chemical reagents.
It was formerly regarded as a definite compound, but is now
known to be a complex mixture of several higher hydrocarbons
of the methane or marsh-gas series; hence, by extension, any
substance, whether solid, liquid, or gaseous, of the same
chemical series; thus gasoline, coal gas and kerosene consist
largely of paraffins.
[1913 Webster +PJC]
Note: In the present chemical usage this word is spelled
paraffin, but in commerce it is commonly spelled
paraffine.
[1913 Webster]
Native paraffin. See Ozocerite.
Paraffin series. See Methane series, under Methane.
[1913 Webster] |
paraffin
(wn) | paraffin
n 1: from crude petroleum; used for candles and for preservative
or waterproof coatings [syn: paraffin, paraffin wax]
2: a series of non-aromatic saturated hydrocarbons with the
general formula CnH(2n+2) [syn: methane series, {alkane
series}, alkane, paraffin series, paraffin]
3: (British usage) kerosine [syn: paraffin, paraffin oil] |
| | podobné slovo | definícia |
paraffin oil
(encz) | paraffin oil,parafinový olej Clock |
paraffin scale
(encz) | paraffin scale, n: |
paraffin wax
(encz) | paraffin wax,parafin RNDr. Pavel Piskač |
native paraffin
(gcide) | ozocerite \o`zo*ce"rite\ ([=o]`z[-o]*s[=e]"r[imac]t), n. [Gr.
'o`zein to smell + khro`s wax.] (Min.)
A waxlike mineral resin; -- sometimes called {native
paraffin}, and mineral wax.
[1913 Webster]Paraffin \Par"af*fin\ (p[a^]r"[a^]f*f[i^]n), Paraffine
\Par"af*fine\ (p[a^]r"[a^]f*f[i^]n or p[a^]r"[a^]f*f[=e]n), n.
[F. paraffine, fr. L. parum too little + affinis akin. So
named in allusion to its chemical inactivity.] (Chem.)
A white waxy substance, resembling spermaceti, tasteless and
odorless, and obtained from coal tar, wood tar, petroleum,
etc., by distillation. It is used in candles, as a sealing
agent (such as in canning of preserves), as a waterproofing
agent, as an illuminant and as a lubricant. It is very inert,
not being acted upon by most of the strong chemical reagents.
It was formerly regarded as a definite compound, but is now
known to be a complex mixture of several higher hydrocarbons
of the methane or marsh-gas series; hence, by extension, any
substance, whether solid, liquid, or gaseous, of the same
chemical series; thus gasoline, coal gas and kerosene consist
largely of paraffins.
[1913 Webster +PJC]
Note: In the present chemical usage this word is spelled
paraffin, but in commerce it is commonly spelled
paraffine.
[1913 Webster]
Native paraffin. See Ozocerite.
Paraffin series. See Methane series, under Methane.
[1913 Webster] |
Native paraffin
(gcide) | ozocerite \o`zo*ce"rite\ ([=o]`z[-o]*s[=e]"r[imac]t), n. [Gr.
'o`zein to smell + khro`s wax.] (Min.)
A waxlike mineral resin; -- sometimes called {native
paraffin}, and mineral wax.
[1913 Webster]Paraffin \Par"af*fin\ (p[a^]r"[a^]f*f[i^]n), Paraffine
\Par"af*fine\ (p[a^]r"[a^]f*f[i^]n or p[a^]r"[a^]f*f[=e]n), n.
[F. paraffine, fr. L. parum too little + affinis akin. So
named in allusion to its chemical inactivity.] (Chem.)
A white waxy substance, resembling spermaceti, tasteless and
odorless, and obtained from coal tar, wood tar, petroleum,
etc., by distillation. It is used in candles, as a sealing
agent (such as in canning of preserves), as a waterproofing
agent, as an illuminant and as a lubricant. It is very inert,
not being acted upon by most of the strong chemical reagents.
It was formerly regarded as a definite compound, but is now
known to be a complex mixture of several higher hydrocarbons
of the methane or marsh-gas series; hence, by extension, any
substance, whether solid, liquid, or gaseous, of the same
chemical series; thus gasoline, coal gas and kerosene consist
largely of paraffins.
[1913 Webster +PJC]
Note: In the present chemical usage this word is spelled
paraffin, but in commerce it is commonly spelled
paraffine.
[1913 Webster]
Native paraffin. See Ozocerite.
Paraffin series. See Methane series, under Methane.
[1913 Webster] |
Paraffin
(gcide) | Paraffin \Par"af*fin\ (p[a^]r"[a^]f*f[i^]n), Paraffine
\Par"af*fine\ (p[a^]r"[a^]f*f[i^]n or p[a^]r"[a^]f*f[=e]n), n.
[F. paraffine, fr. L. parum too little + affinis akin. So
named in allusion to its chemical inactivity.] (Chem.)
A white waxy substance, resembling spermaceti, tasteless and
odorless, and obtained from coal tar, wood tar, petroleum,
etc., by distillation. It is used in candles, as a sealing
agent (such as in canning of preserves), as a waterproofing
agent, as an illuminant and as a lubricant. It is very inert,
not being acted upon by most of the strong chemical reagents.
It was formerly regarded as a definite compound, but is now
known to be a complex mixture of several higher hydrocarbons
of the methane or marsh-gas series; hence, by extension, any
substance, whether solid, liquid, or gaseous, of the same
chemical series; thus gasoline, coal gas and kerosene consist
largely of paraffins.
[1913 Webster +PJC]
Note: In the present chemical usage this word is spelled
paraffin, but in commerce it is commonly spelled
paraffine.
[1913 Webster]
Native paraffin. See Ozocerite.
Paraffin series. See Methane series, under Methane.
[1913 Webster] |
paraffin little affinity series
(gcide) | Methane \Meth"ane\, n. [See Methal.] (Chem.)
A light, colorless, gaseous, inflammable hydrocarbon, CH4;
marsh gas. It is the simplest of the aliphatic hydrocarbons.
See Marsh gas, under Gas.
[1913 Webster]
Methane series (Chem.), a series of saturated hydrocarbons,
of which methane is the first member and type, and
(because of their general chemical inertness and
indifference) called also the {paraffin (little affinity)
series}. The lightest members are gases, as methane,
ethane; intermediate members are liquids, as hexane,
heptane, etc. (found in benzine, kerosene, etc.); while
the highest members are white, waxy, or fatty solids, as
paraffin proper.
[1913 Webster] |
Paraffin series
(gcide) | Paraffin \Par"af*fin\ (p[a^]r"[a^]f*f[i^]n), Paraffine
\Par"af*fine\ (p[a^]r"[a^]f*f[i^]n or p[a^]r"[a^]f*f[=e]n), n.
[F. paraffine, fr. L. parum too little + affinis akin. So
named in allusion to its chemical inactivity.] (Chem.)
A white waxy substance, resembling spermaceti, tasteless and
odorless, and obtained from coal tar, wood tar, petroleum,
etc., by distillation. It is used in candles, as a sealing
agent (such as in canning of preserves), as a waterproofing
agent, as an illuminant and as a lubricant. It is very inert,
not being acted upon by most of the strong chemical reagents.
It was formerly regarded as a definite compound, but is now
known to be a complex mixture of several higher hydrocarbons
of the methane or marsh-gas series; hence, by extension, any
substance, whether solid, liquid, or gaseous, of the same
chemical series; thus gasoline, coal gas and kerosene consist
largely of paraffins.
[1913 Webster +PJC]
Note: In the present chemical usage this word is spelled
paraffin, but in commerce it is commonly spelled
paraffine.
[1913 Webster]
Native paraffin. See Ozocerite.
Paraffin series. See Methane series, under Methane.
[1913 Webster] |
Paraffine
(gcide) | Paraffin \Par"af*fin\ (p[a^]r"[a^]f*f[i^]n), Paraffine
\Par"af*fine\ (p[a^]r"[a^]f*f[i^]n or p[a^]r"[a^]f*f[=e]n), n.
[F. paraffine, fr. L. parum too little + affinis akin. So
named in allusion to its chemical inactivity.] (Chem.)
A white waxy substance, resembling spermaceti, tasteless and
odorless, and obtained from coal tar, wood tar, petroleum,
etc., by distillation. It is used in candles, as a sealing
agent (such as in canning of preserves), as a waterproofing
agent, as an illuminant and as a lubricant. It is very inert,
not being acted upon by most of the strong chemical reagents.
It was formerly regarded as a definite compound, but is now
known to be a complex mixture of several higher hydrocarbons
of the methane or marsh-gas series; hence, by extension, any
substance, whether solid, liquid, or gaseous, of the same
chemical series; thus gasoline, coal gas and kerosene consist
largely of paraffins.
[1913 Webster +PJC]
Note: In the present chemical usage this word is spelled
paraffin, but in commerce it is commonly spelled
paraffine.
[1913 Webster]
Native paraffin. See Ozocerite.
Paraffin series. See Methane series, under Methane.
[1913 Webster] |
paraffin oil
(wn) | paraffin oil
n 1: (British usage) kerosine [syn: paraffin, paraffin oil] |
paraffin scale
(wn) | paraffin scale
n 1: partly refined paraffin wax [syn: scale wax, {paraffin
scale}] |
paraffin series
(wn) | paraffin series
n 1: a series of non-aromatic saturated hydrocarbons with the
general formula CnH(2n+2) [syn: methane series, {alkane
series}, alkane, paraffin series, paraffin] |
paraffin wax
(wn) | paraffin wax
n 1: from crude petroleum; used for candles and for preservative
or waterproof coatings [syn: paraffin, paraffin wax] |
|