| slovo | definícia |
heptad
(encz) | heptad, n: |
Heptad
(gcide) | Heptad \Hep"tad\, n. [L. heptas the number seven. Gr. ?, ?, fr.
"epta` seven.] (Chem.)
An atom which has a valence of seven, and which can be
theoretically combined with, substituted for, or replaced by,
seven monad atoms or radicals; as, iodine is a heptad in
iodic acid. Also used as an adjective.
[1913 Webster] |
heptad
(wn) | heptad
n 1: the cardinal number that is the sum of six and one [syn:
seven, 7, VII, sevener, heptad, septet,
septenary] |
| | podobné slovo | definícia |
cyproheptadine
(encz) | cyproheptadine, n: |
heptadecanoic acid
(encz) | heptadecanoic acid, n: |
Heptad
(gcide) | Heptad \Hep"tad\, n. [L. heptas the number seven. Gr. ?, ?, fr.
"epta` seven.] (Chem.)
An atom which has a valence of seven, and which can be
theoretically combined with, substituted for, or replaced by,
seven monad atoms or radicals; as, iodine is a heptad in
iodic acid. Also used as an adjective.
[1913 Webster] |
Heptade
(gcide) | Heptade \Hep"tade\, n. [Cf. F. heptade. See Heptad.]
The sum or number of seven.
[1913 Webster] |
heptadecanoic acid
(gcide) | Margaric \Mar*gar"ic\, a. [Cf. F. margarique. See Margarite.]
Pertaining to, or resembling, pearl; pearly.
[1913 Webster]
Margaric acid.
(a) (Physiol. Chem.) A fatty body, crystallizing in pearly
scales, and obtained by digesting saponified fats (soaps)
with an acid. It was formerly supposed to be an
individual fatty acid, but is now known to be simply an
intimate mixture of stearic and palmitic acids.
(b) (Chem.) A white, crystalline substance, C17H34O2 of the
fatty acid series, intermediate between palmitic and
stearic acids, and obtained from the wax of certain
lichens, from cetyl cyanide, and other sources. Called
also heptadecanoic acid.
[1913 Webster] |
cyproheptadine
(wn) | cyproheptadine
n 1: an antihistamine (trade name Periactin) used to treat some
allergic reactions [syn: cyproheptadine, Periactin] |
heptadecanoic acid
(wn) | heptadecanoic acid
n 1: a colorless crystalline synthetic fatty acid [syn:
margaric acid, heptadecanoic acid] |
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