[ Gr. pachy`s thick. ] A combining form meaning thick; as, pachyderm, pachydactyl. [ 1913 Webster ]

a. [ Pachy- + Gr. karpo`s fruit. ] (Bot.) Having the pericarp thick. [ 1913 Webster ]

prop. n. A genus of arborial insectivorous birds.
Syn. -- genus Pachycephala. [ WordNet 1.5 ]

n. [ Pachy- + dactyl. ] (Zool.) A bird or other animal having thick toes. [ 1913 Webster ]

a. (Zool.) Having thick toes. [ 1913 Webster ]

n. [ Cf. F. pachyderme. ] (Zool.) Any of various nonruminant hoofed mammals having very thick skin, including the elephant, rhinoceros, and hippopotamus, one of the Pachydermata. [ WordNet 1.5 + 1913 Webster ]

n. (Med.) An abnormal thickening of the skin (usually unilateral on an extremity) caused by congenital enlargement of lymph vessel and lymph vessel obstruction.
Syn. -- pachydermatosis, pachydermia, nevoid elephantiasis. [ WordNet 1.5 ]

a. (Zool.) Of or relating to the pachyderms; as, pachydermal dentition. [ 1913 Webster ]

‖n. pl. [ NL., fr. Gr. pachy`dermos thick-skinned; pachy`s thick + de`rma skin. ] (Zool.) A group of hoofed mammals distinguished for the thickness of their skins, including the elephant, hippopotamus, rhinoceros, tapir, horse, and hog; the pachyderms. It is now considered an artificial group. [ 1913 Webster ]

n. (Med.) Same as pachyderma.
Syn. -- pachyderma, pachydermia, nevoid elephantiasis. [ WordNet 1.5 ]

a. 1. (Zool.) Of or pertaining to the pachyderms. [ 1913 Webster ]

2. Thick-skinned; not sensitive to ridicule. [ 1913 Webster ]

3. (Med.) Of or pertaining to pachyderma. [ PJC ]

n. (Med.) Same as pachyderma.
Syn. -- pachydermatosis, pachyderma, nevoid elephantiasis. [ WordNet 1.5 ]

a. [ Pachyderm + -oid. ] (Zool.) Related to the pachyderms. [ 1913 Webster ]

a. [ Pachy- + Gr. glw^ssa tongue. ] (Zool.) Having a thick tongue; -- applied to a group of lizards (Pachyglossæ), including the iguanas and agamas. [ 1913 Webster ]

n. [ Pachy- + Gr. glw^ssa tongue. ] (Med.) The condition of having an enlarged thick tongue. [ PJC ]

n. [ Pachy- + meningitis. ] (Med.) Inflammation of the dura mater or outer membrane of the brain. [ 1913 Webster ]

n. [ Pachy- + -meter. ] Same as Pachometer. [ 1913 Webster ]

n. [ Pachy- + Gr. o'y^s, 'wto`s, ear. ] (Zool.) One of a family of bats, including those which have thick external ears. [ 1913 Webster ]

prop. n. (Bot.) A small genus of tropical vines having tuberous roots.
Syn. -- genus Pachyrhizus. [ WordNet 1.5 ]

n. (Bot.) Any plant of the genus Pachysandra; they are low-growing evergreen herbs or subshrubs having dentate leaves and used as ground cover. [ WordNet 1.5 ]

n. (Biol.) The third stage of the prophase of meiosis, the stage in which the pairing of homologous chromosomes has been completed. [ WordNet 1.5 ]