- articulamentum
- ar·tic·u·la·men·tum
English syllables. 2014.
articulamentum
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articulamentum — n. [L. articulare, to divide] (MOLLUSCA: Polyplacophora) The shell layer between the tegmentum and hypostracum, that is composed of several separate components of crystalline shell structure; formerly the hard, semiporcellaneous shell layer… … Dictionary of invertebrate zoology
articulamentum — … Useful english dictionary
sutural laminae — (MOLLUSCA: Polyplacophora) Apophyses plates; anterior plate like projections of the articulamentum extending from either side of an intermediate or tail valve; may be separated by a sinus or partially joined by a laminar extension of the… … Dictionary of invertebrate zoology
Chiton — This article is about the mollusc. For the ancient Greek article of dress, see Chiton (costume). Chiton Temporal range: Devonian–Recent[1][2] … Wikipedia
insertion plate — (MOLLUSCA: Polyplacophora) A narrow marginal extension of the articulamentum layer in the head and tail valves and sides of the intermediate valves, projecting into the girdle; lamina of insertion … Dictionary of invertebrate zoology
mesostracum — n. [Gr. mesos, middle; ostrakon, shell] (MOLLUSCA: Polyplacorphora) A calcareous shell layer between the tegmentum and the articulamentum in certain more highly developed living species … Dictionary of invertebrate zoology
posterior sinus — (MOLLUSCA: Polyplacophora) A recess in the posterior median line of a tail valve, formed by the tegmentum or in some forms by the articulamentum … Dictionary of invertebrate zoology
sutural plate — (MOLLUSCA: Polyplacophora) Lamina of the articulamentum across the jugal sinus of the intermediate and tail valve, extending between the sutural laminae … Dictionary of invertebrate zoology
teeth — n. [A.S. toth, tooth] 1. Hardened growths on mandibles, maxillae or stomatal walls. 2. (CNIDARIA: Hydrozoa) Deep or very shallow indentations on the hydrothecal margins; peglike chitinous growths just inside the margins. 3. (MOLLUSCA:… … Dictionary of invertebrate zoology
