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One of the second pair of appendages near the mouth of a chelicerate, such as a spider or horseshoe crab, used for various reproductive, predatory, or sensory functions.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈpɛdɪˌpælp) or


(Zoology) either member of the second pair of head appendages of arachnids: specialized for feeding, locomotion, etc
[C19: from New Latin pedipalpi, from Latin pēs foot + palpus palp]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈpɛd əˌpælp)

either of the pair of variously adapted appendages between the jaws and first walking legs of spiders and other arachnids.
[1820–30; < New Latin Pedipalpus. See pedi-, palp]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
Females in trials with males without gifts often did not assume the typical mating position (i.e., elevated opistosoma), but rather remained with their opistosoma close to the ground, thereby blocking the males' insertions of the pedipalps into the epigyne.
In addition to its tail, "the new animal resembles a spider in having fangs, male pedipalps, four walking legs and silk-producing spinnerets at its rear."
The study contains a detailed description of a larva of the Eratigena atrica spider, which had a well-developed prosoma and an additional, partly developed head with two segmented pedipalps and one chelicera with two fangs.
To confirm the identification of pseudoscorpions, measurements of their body size and appendages (pedipalps, legs, and chelicerae) were performed using a microscope (Coleman XTB-3AT).
The scorpions captured the prey with the pedipalps and inoculated venom rapidly, stinging the prey as many times as necessary to subdue it; they ate it later.
Since all parts of its body such as pedipalps, dorsal surface of mesosoma, legs, lateral and ventral surfaces of metasomal segments, and vesicle densely are covered by hair, it is known as the hairy black scorpion.
The orbweaver spider had spines on its legs and very coarse spine-like hairs on its pedipalps and cheliceri along with six of its eight small same-sized eyes visible.
In some cases the male pedipalps and female epigynes were dissected for more detailed study.
intermedia from Anodonta anatina is capable of piercing the gills of host mussels with their pedipalps, allowing them to feed on hemolymph and mucus.
The genus is characterized by having: relatively large body (more than 5 mm long); a crown-like mound containing numerous black-tipped tubercles on cephalothorax anterior to the ocularium, coxae I-IV smooth and only with sparse setae; chelicerae usually normal structured with blackish brown zebra-like stripped pattern, pedipalps short, robust and femora, patella, tibiae covered with numerous black-tipped tubercles (males having microtubercles on ventor of tarsus); legs short or more commonly long (Tsurusaki 1987; Tsurusaki et al.
Morphological terminology follows Chamberlin (1931), with modifications to the nomenclature of the segments of pedipalps and legs (Harvey, 1992).