PEN- 



231 



PER- 



dere, to hang.] Bending down- 

 wards from the point of origin ; 

 overhanging ; appl. ovules, branches, 

 flowers (bo /.). 



penial setae, paired needle-like 

 chitinoid bodies at the anus of a 

 round-worm, which also serves as 

 reproductive aperture (zool.). 



penicillate (pgn'isll'at) a. [L. peni- 

 cillum, a painter's brush.] Peni- 

 cilliform ; pencil-shaped ; tipped 

 with hairs ; having a structure like 

 a camel-hair brush. 



penis (pe'nls) n. [L. penis, a penis.] 

 The male copulatory organ. 



pennaceous (pfina'shus) a, [L.penna, 

 feather.] Penniform ; like a plume 

 or feather. 



pentacapsular (pgn'takap'sular) a. 

 \Gk. Pente, five ; L. capsula, a cap- 

 sule.] With five capsules (bot.). 



pentacarpellary (pgn'takarpeTari) a. 

 [Gk. pente, five ; karpos, fruit.] 

 With five carpels (bot.). 



pentachenium (pgn'take'nium) n, 

 [Gk. pente, five ; a, not ; chainein, 

 to gape.] A form of schizocarp 

 with five carpels (bot.). 



pentacoccous (pSn'takok'us) a. [Gk. 

 pente, five ; kokkos, kernel.] With 

 five seeds or carpels (bot.). 



pentacrinoid (pgn'takrf noid) a. [Gk. 

 pente, five ; krinon, a lily ; eidos, 

 resemblance.] Resembling a Penta- 

 crinus ; appl. a larval stage of 

 Feather-stars, the fixed stalked 

 stage like a Pentacrinus (zool.). 



pentactinal (pgntak'tTnal) a. [Gk. 

 pente, five ; aktis, ray.] Five-rayed ; 

 five-branched. 



pentacyclic (pgn'tasik'llk) a. [Gk. 

 pente, five ; kyklos, a circle.] Ar- 

 ranged in five whorls (hot.}. 



pentadactyl (pen'tadak'til) a. [Gk. 

 pente, five ; daktylos, a finger.] 

 Having all four limbs normally 

 terminating in five digits. 



pentadelphous (pgn'tadeTfus) a. [Gk. 

 pente, five ; adelphos, brother.] 

 Having five clusters of more or less 

 united filaments (bot.). 



pentafld (pen'taffd) a. [Gk. pente, 

 five ; ~L.findere, to cleave.] In five 

 divisions or lobes (bot.). 



pentagonal (pe'ntag'onal) a. [Gk. 

 pente, five ; gonia, angle.'] Appl. 

 the symmetry of a pentamerous 



flower ; quinary ; having five angles 

 (bof.). 



pentagynous (pgntaj'inus) a. [Gk. 

 pente, five ; gyne, a woman.] Having 

 five styles (bot.). 



pentamerous (pentam'e'rus) a. [Gk. 

 pente, five ; meros, part.] Com- 

 posed of five parts ; in whorls of 

 five or a multiple of five (bot.). 



pentandrous (pgntan'drus) a. [Gk. 

 pente, five ; andros, male.] Having 

 five stamens (&?/.) 



pentapetalous (pgn'tapeYalus) a. [Gk. 

 Pente, five ; pefalon, a petal.] 

 Having five petals (bot.). 



pentapterous (pfintap'tgrus) a. [Gk. 

 pente, five ; pteron, wing.] With 

 five wings, as some fruits (bot.\ 



pentasepalous (pgn'tasep'alus) a. 

 [Gk. pente, five ; sepalon, sepal.] 

 Having five sepals (bot.\ 



pentastichous (pgntas'tlkus) a. [Gk. 

 pente, five ; stichos, a row.] Ar- 

 ranged in five vertical rows (bot.~). 



pepo (pe'po) n. [Gk. pepon, melon.] 

 An inferior one-celled, many- 

 seeded pulpy fruit (bot.\ 



pepsin (pgp'sin) n. [Gk. pepsis, a 

 digesting.] An enzyme secreted 

 by the stomach (phys.}. 



peptic (pgp'tik) a. [Gk. pepsis, a 

 digesting,] Relating to or pro- 

 moting digestion ; appl. pepsin- 

 secreting glands of the stomach 

 (anat.\ 



peptonephridia (pgp'tongfrfd'ia) n.plu. 

 [Gk. pepsis, digestion ; nephros* 

 kidney.] The anterior nephridia 

 of Oligochaets which function as 

 digestive glands (zool.}. 



peraeopods, pereiopods. 



percurrent (pgrkur'gnt) a. [L. per- 

 currens, running through.] Ex- 

 tending throughout the entire 

 length, or from base to apex (bot.}. 



pereion (pgrfon) n. [Gk. peraioun, to 

 convey.] The thorax of Crustacea 

 (zool.). 



pereiopods (pgrfopSdz) n. plu. [Gk. 

 peraioun, to convey ; ous, foot.] 

 The locomotory thoracic limbs of 

 Malacostraca ; trunk-legs (zool.). 



perennation (pgr'gna'shun) n. [L. 

 per, through ; annus, a year.] 

 Condition of living for a number 

 of years (bof.). 



perennial (peYgnlal) a. [L per, 



