Word Meanings - ARACHNIDA - Book Publishers vocabulary database

One of the classes of Arthropoda. See Illustration in Appendix. Note: They have four pairs of legs, no antennæ nor wings, a pair of mandibles, and one pair of maxillæ or palpi. The head is usually consolidated with the thorax. The respiration

Additional info about word: ARACHNIDA

One of the classes of Arthropoda. See Illustration in Appendix. Note: They have four pairs of legs, no antennæ nor wings, a pair of mandibles, and one pair of maxillæ or palpi. The head is usually consolidated with the thorax. The respiration is either by trancheæ or by pulmonary sacs, or by both. The class includes three principal orders: Araneina, or spiders; Arthrogastra, including scorpions, etc.; and Acarina, or mites and ticks.

Related words: (words related to ARACHNIDA)

• THORAX
  The part of the trunk between the neck and the abdomen, containing that part of the body cavity the walls of which are supported by the dorsal vertebræ, the ribs, and the sternum, and which the heart and lungs are situated; the chest. Note: In
• CONSOLIDATED
  Having a small surface in proportion to bulk, as in the cactus. Consolidated plants are evidently adapted and designed for very dry regions; in such only they are found. Gray. The Consolidated Fund, a British fund formed by consolidating (in 1787)
• CONSOLIDATION
  To organic cohesion of different circled in a flower; adnation. (more info) 1. The act or process of consolidating, making firm, or uniting; the state of being consolidated; solidification; combination. The consolidation of the marble and of the
• PALPIFORM
  Having the form of a palpus.
• MAXILLO-MANDIBULAR
  Pertaining to the maxilla and mandible; as, the maxillo- mandibular nerve.
• ANTENNULE
  A small antenna; -- applied to the smaller pair of antennæ or feelers of Crustacea.
• APPENDIX
  1. Something appended or added; an appendage, adjunct, or concomitant. Normandy became an appendix to England. Sir M. Hale. 2. Any literary matter added to a book, but not necessarily essential to its completeness, and thus distinguished
• ANTENNAL
  Belonging to the antennæ. Owen.
• MAXILLIFORM
  Having the form, or structure, of a maxilla.
• PALPIGER
  That portion of the labium which bears the palpi in insects.
• MAXILLA
  One of the lower or outer jaws of arthropods. Note: There are usually two pairs in Crustacea and one pair in insects. In certain insects they are not used as jaws, but may form suctorial organs. See Illust. under Lepidoptera, and Diptera. (more
• PALPITATION
  A rapid pulsation; a throbbing; esp., an abnormal, rapid beating of the heart as when excited by violent exertion, strong emotion, or by disease.
• PALPICORN
  One of a group of aquatic beetles having short club-shaped antennæ, and long maxillary palpi.
• ARTHROPODA
  A large division of Articulata, embracing all those that have jointed legs. It includes Insects, Arachnida, Pychnogonida, and Crustacea. -- Ar*throp"o*dal, a.
• ILLUSTRATION
  1. The act of illustrating; the act of making clear and distinct; education; also, the state of being illustrated, or of being made clear and distinct. 2. That which illustrates; a comparison or example intended to make clear or apprehensible,
• MAXILLAR; MAXILLARY
  Pertaining to either the upper or the lower jaw, but now usually applied to the upper jaw only. -- n.
• CONSOLIDATIVE
  Tending or having power to consolidate; healing.
• PALPIGEROUS
  Bearing a palpus. Kirby.
• APPENDIX VERMIFORMIS
  The vermiform appendix.
• RESPIRATIONAL
  Of or pertaining to respiration; as, respirational difficulties.
• PREMAXILLA
  A bone on either side of the middle line between the nose and mouth, forming the anterior part of each half of the upper jawbone; the intermaxilla. In man the premaxillæ become united and form the incisor part of the maxillary bone.
• PROTHORAX
  The first or anterior segment of the thorax in insects. See Illusts. of Butterfly and Coleoptera.
• TEMPOROMAXILLARY
  Of or pertaining to both the temple or the temporal bone and the maxilla.
• CEPHALOTHORAX
  The anterior portion of any one of the Arachnida and higher Crustacea, consisting of the united head and thorax.
• HAEMATOTHORAX
  See HEMOTHORAX
• INTERMAXILLA
  See PREMAXILLA
• SEPTOMAXILLARY
  Of or pertaining to the nasal septum and the maxilla; situated in the region of these parts. -- n.
• PRAEMAXILLA
  See PREMAXILLA
• SUPRAMAXILLARY
  Situated over the lower jaw; as, the supramaxillary nerve. Of or pertaining to the upper jaw.
• SUPERMAXILLARY
  Supermaxillary.