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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.

s (nine are possible, four are known); -- so called because the molecule has seven carbon atoms. Specifically, a colorless liquid, found as a constituent of petroleum, in the tar oil of cannel coal, etc.

One who dissects, or studies the anatomy of, reptiles.

The anatomy or dissection of reptiles.

A prefix or combining form, used to denote six, sixth, etc.; as, hexatomic, hexabasic.

Having six hydrogen atoms or six radicals capable of being replaced or saturated by bases; -- said of acids; as, mellitic acid is hexabasic.

Having six atoms or radicals capable of being replaced by acids; hexatomic; hexavalent; -- said of bases; as, mannite is a hexacid base.

An atom whose valence is six, and which can be theoretically combined with, substituted for, or replaced by, six monad atoms or radicals; as, sulphur is a hexad in sulphuric acid. Also used as an adjective.

ey are colorless, volatile liquids, and are so called because the molecule has six carbon atoms.

rocarbon, C26H54, resembling paraffine; -- so called because each molecule has twenty-six atoms of carbon. [Written also hexacosane.]

Any member of a group of sugars containing six carbon atoms in the molecule. Some are widely distributed in nature, esp. in ripe fruits.

Anatomy of the horse.

To become entangled or caught; to be linked or yoked; to unite; to cling. Atoms . . . which at length hitched together. South.

equivalents or combining weights, and also of valence, being the typical monad. Symbol H. Atomic weight 1.

A compound radical, or unsaturated group, HO, consisting of one atom of hydrogen and one of oxygen. It is a characteristic part of the hydrates, the alcohols, the oxygen acids, etc.

A prexif used in anatomy, and generally denoting connection with the hyoid bone or arch; as, hyoglossal, hyomandibular, hyomental, etc.

he laws of mechanics and mathematics to the human body, and hence were eager student of anatomy; -- opposed to the iatrochemists.

The anatomy or dissection of fishes. [R.]

A combining form used in anatomy to denote connection with, or relation to, the ilium; as, ilio-femoral, ilio-lumbar, ilio-psoas, etc.

h the imido group, or with a monamine; hence, also, a derivative of ammonia, in which two atoms of hydrogen have been replaced by divalent basic or acid radicals; -- frequently used as a combining form; as, succinimide.