fulcrum
From ZooTerms (Dictionary of Invertebrate Zoology)
Revision as of 14:27, 10 September 2013 by Andreas Plank (Talk | contribs) (1 revision: noun simple (largest file 2.4MB))
fulcrum (noun; plural fulcrums; Latin fulcrum, support): 1. Any structure that props or supports another.
2. (Arthropoda: Insecta) a. In Heteroptera, the trochantin. b. In lower hemimetabolous insects, a sclerotized fulcrum formed by two ligual sclerites joined proximally on the ventral surface of the hypopharynx. c. In Diptera and Hymenoptera, the horny part of the lingula.
3. (Mollusca: Bivalvia) That portion to which the cartilage is attached; chondrophore.
4. (Rotifera) The unpaired trophus of the mastax.
