(||Hex"a*pla) n. Etym. pl., but syntactically sing. [NL., fr. Gr. fr. contr. sixfold.] A collection of the Holy Scriptures in six languages or six versions in parallel columns; particularly, the edition of the Old Testament published by Origen, in the 3d century.

(Hex"a*pod) a. [Gr. sixfooted; "e`x six + foot: cf. F. hexapode.] Having six feet.n. (Zoöl.) An animal having six feet; one of the Hexapoda.

(||Hex*ap"o*da) n. pl. [NL., fr. Gr. "e`x six + -poda.] (Zoöl.) The true, or six-legged, insects; insects other than myriapods and arachnids.

The Hexapoda have the head, thorax, and abdomen differentiated, and are mostly winged. They have three pairs of mouth organs, viz., mandibles, maxillæ, and the second maxillæ or labial palpi; three pairs of thoracic legs; and abdominal legs, which are present only in some of the lowest forms, and in the larval state of some of the higher ones. Many (the Metabola) undergo a complete metamorphosis, having larvæ (known as maggots, grubs, caterpillars) very unlike the adult, and pass through a quiescent pupa state in which no food is taken; others (the Hemimetabola) have larvæ much like the adult, expert in lacking wings, and an active pupa, in which rudimentary wings appear. See Insecta. The Hexapoda are divided into several orders.

(Hex*ap"o*dous) a. (Zoöl.) Having six feet; belonging to the Hexapoda.

(Hex*ap"ter*ous) a. [Hexa- + Gr. wing.] (Bot.) Having six processes. Gray.

(Hex"a*stich ||Hex*as"ti*chon) n. [L. hexastichus of six rows, lines, or verses, Gr. "e`x six + sti`chos row, line, verse.] A poem consisting of six verses or lines.

(Hex"a*style) a. [Gr. with six columns; "e`x six + column: cf. F. hexastyle.] (Arch.) Having six columns in front; — said of a portico or temple.n. A hexastyle portico or temple.

(Hex"a*teuch`) n. [Hexa- + a tool, a book.] The first six books of the Old Testament.

(Hex`a*tom"ic) a. [Hex- + atomic.] (Chem.) (a) Having six atoms in the molecule. [R.] (b) Having six replaceable radicals.

(Hex*av"a*lent) a. [Hexa- + L. valens, -entis, p. pr. See Valence.] (Chem.) Having a valence of six; — said of hexads.

(Hex"de*cyl) n. [Hex- + decyl.] (Chem.) The essential radical, C16H33, of hecdecane.

(Hex`de*cyl"ic) a. (Chem.) Pertaining to, or derived from, hexdecyl or hecdecane; as, hexdecylic alcohol.

(Hex*ei"ko*sane) n. [Hex- + eikosane.] (chem.) A hydrocarbon, C26H54, resembling paraffine; — so called because each molecule has twenty-six atoms of carbon. [Written also hexacosane.]

(Hex"ene) n. [Gr. "e`x six.] (Chem.) Same as Hexylene.

(Hex`i*col"ogy) n. [Gr. state or habit + -logy.] The science which treats of the complex relations of living creatures to other organisms, and to their surrounding conditions generally. St. George Mivart.

(Hex"ine) n. [Gr. "e`x six.] (Chem.) A hydrocarbon, C6H10, of the acetylene series, obtained artificially as a colorless, volatile, pungent liquid; — called also hexoylene.

(Hex*oc`ta*he"dron) n. [Hex- + octahedron.] (Geom.) A solid having forty-eight equal triangular faces.

  By PanEris using Melati.

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