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One of a pair of elongated, often segmented appendages usually found near the mouth in invertebrate organisms such as mollusks, crustaceans, and insects, the functions of which include sensation, locomotion, and feeding. Also called palpus.

[French palpe, from New Latin palpus, from Latin, a touching; see pāl- in Indo-European roots.]

pal′pal (păl′pəl) adj.
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.


(pælp) or


n, pl palps or palpi (ˈpælpaɪ)
1. (Zoology) either of a pair of sensory appendages that arise from the mouthparts of crustaceans and insects
2. (Zoology) either of a pair of tactile organs arising from the head or anterior end of certain annelids and molluscs
[C19: from French, from Latin palpus a touching]
ˈpalpal adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈpæl pəs)

n., pl. -pi (-pī).
an appendage attached to an oral part and serving as an organ of sense in insects, crustaceans, etc.
[1805–15; < New Latin; Latin palpus or palpum palm of the hand]
palp′al, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.


A segmented organ extending from the mouthparts of arthropods, used for touch or taste.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in classic literature ?
I had been restless, dreaming most disagreeably that I was drowned, and that sea anemones were feeling over my face with their soft palps. I woke with a start, and with an odd fancy that some greyish animal had just rushed out of the chamber.
While we observed males placing only one palp over the female's epigyne during courtship, our males never charged their palps with sperm prior to this and we never observed copulation in the cohabiting pairs we found in the field.
La presencia de sensilas dentro de estructuras llamadas 'Palp pit Labial' (LPO), se caracteriza por poseer superficies ranuradas con poros o tubulos porosos en su pared, que es tipico de receptores.
(A) Habitus, lateral view; (B) Prosomal end and urosome, ventral view; (C) Antenna; (D) Mandibular gnathobase; (E) Mandibular palp; (F) Maxilla; (G) Leg 1; (H) Leg 2; (1) Leg 3; (J) Leg 4.
phoenicis in having a narrowly lanceolate dorsal seta on palp femorogenu (Fig.
Spination: femora I p 0-0-1, II 0, III 0, IV 0 and femora of palps 0; patellae I-IV 0 and patellae of palps 0; tibiae I p 0-1-0, r 2-2-2, II v 2-1-4, p 0-1-0, III v 1-2-1 (apical), r 0-1-0, IV r 0-1-0 and tibiae of palps p 0-1-0; metatarsi I v 0-0-1 (apical), II v 0-(0-1)-3 (apical), III v 0-1-3 (apical), p 0-1-1, r 0-1-1-1, IV v 0-1-3 (apical), p 0-1-1, r 0-1-1, tarsi I-IV and tarsi of palps 0.
websteri showed variation in palp pigmentation pattern, the shape of the anterior edge of the prostomium, the shape of the major spines on chaetiger 5, and shape of the pygidium (Table III).
The maxillary palpus is composed of two pieces: the distal maxillary palp, the mobile sensory appendage, and the proximal maxillary socket into which the distal maxillary palp is inserted (Figure 1(A)).
Mesocyclops oganmts female: (A)--General aspect; (B)--Antenna 2 (setae: longitudinal spines rows); (C)--Maxillulary palp (setae: rows of spines); (D)--Intercoxal sclerite of leg 4 (setae: projection); (E)--Genital segment (setae: lateral ami of the seminal receptacle); (F)- Caudal rami (setae: naked inner margin).
In the beginning, Director General (DG) Khana-e-Farhang, Ali Yousafi and Resident Director, Pakistan Academy of Letters Peshawar (PALP), Said Wali Khiyal Mohmand welcomed the participants for participating in the Mushaira.