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Related to pedipalp: book lung, Cheliped, Coxal gland, chelicerae


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 ?
-- This species has an unusual pedipalp. The dorsal projection on the tibia of the pedipalp is unlike any structure thus seen in the genus.
Specimens are lodged at the Western Australian Museum, Perth (WAM), the Australian Museum, Sydney (AMS) and the Queensland Museum, Brisbane (QMB), and the following abbreviations are used throughout the text: ALE, anterior lateral eye/s; AME, anterior median eye/s; CO/, cytochrome c oxidase subunit I; CYB, cytochrome b; IBRA, Interim Biogeographic Regionalisation of Australia Version 7 (online at; ITS 1-2, internal transcribed spacer 1-2; MRPL45, 39S ribosomal protein L45 mitochondrial; PLE, posterior lateral eye/s; PME, posterior median eye/s; RPF2, ribosome production factor 2 homolog; RTA, retrolateral tibial apophysis (of male pedipalp); XPNPEP3, probable Xaa-Pro aminopeptidase 3.
Pedipalp brown; tibial apophysis broad, with additional ventral tooth (Figs 115, 116); embolus curved towards retrolateral margin of cymbium (Fig.
nitidum (Audouin, 1826), but can be distinguished by the shape of the median and tibial apophysis of the male pedipalp and by the form of the epigyne and spermathecae.
Pedipalp pale yellow except yellowish brown tarsus with fine hairs and long spines, tarsus single clawed.
parrilloi Carapace: - length 3,0 2,2 - anterior width 2,4 1,9 - posterior width 3,3 2,6 Metasomal segment I: - length 1,6 1,0 - width 1,7 1,5 Metasomal segment V: - length 3,9 2,9 - width 1,4 1,2 - depth 1,3 1,1 Vesicle: - width 1,1 0,8 - depth 1,2 0,9 Pedipalp: - Femur length 2,8 2,0 - Femur width 0,9 0,6 - Tibia length 3,6 2,4 - Tibia width 1,2 0,9 - Chelae length 5,4 4,0 - Chelae width 1,0 0,8 - Chelae depth 1,0 0,7 Movable finger: - length 3,6 2,9 ACKNOWLEDGEMENTS
Descriptive terminology follows Mattoni & Acosta (2005) for hemispermatophores; Vachon (1974) for trichobothria; Francke (1977) for metasomal carinae, abbreviated as follows: DL: dorsolateral; LIM: lateral inframedian; LSM: lateral supramedian; LM: lateral median; VSM: ventral submedian; VL: ventrolateral; VM: ventromedial!; and Prendini (2000) for pedipalp carinae, abbreviated as follows: DI: dorsal internal; DE: dorsal external; VI: ventral internal; VE: ventral external;
The only other character used to distinguish between these two subfamilies is a difference in the position of the trichobothrium ist, on the prolateral surface of the fixed finger of the pedipalp chelae.
Pedipalp 260.3-287.2 (272.6)/176.9 (176.9); leg I 195.0-217.1 (206.1)/147.0 (147.0); leg IV 222.2-262.0 (241.5)/l64.0-168.0 (166.0).
Trichobothrial response.--To determine if the moth analog produced an effective air stimulus for deflecting the trichobothria, we used foam rubber to restrain a live scorpion and position its right pedipalp about 1 cm from one of the moth's wings (Fig.