profile n. [L. pro, before; filum, outline] An outline as seen from the side or lateral view.
profundal region In deep lakes from limnetic zone to bottom.
profuse a. [L. profusus, abundant] Abundant.
progenesis n. [Gr. pro, before; genesis, origin] 1. Retention of juvenile characters by precocious, sexually mature morphologically juvenile stage. see paedogenesis. 2. (platy: Trematoda) Larval reproduction.
progenital a. [L. pro, before; gignere, to beget] (ARTHRO:
Chelicerata) In Acari, referring to the area between the primary and secondary genital opening and to the secondary opening itself.
progenital chamber (ARTHRO: Chelicerata) In Acari, the chamber between the primary and secondary genital opening of Acariformes.
progenital lips (ARTHRO: Chelicerata) In Acari, paired symmetrical valves that close the progenital chamber of many Acariformes.
progenitor n. [L. pro, before; gignere, to beget] An ancestral species.
progeny n. [L. pro, before; gignere, to beget] Offspring; young.
proglottid n. [Gr. pro, before; glotta, tongue] (PLATY: Cestoda) One complete unit of reproductive organs in a strobila; usually corresponding to a segment.
proglottis n.; pl. -ides [Gr. pro, before; glotta, tongue] (PLATY: Cestoda) A proglottid.
prognathous a. [Gr. pro, before; gnathos, jaw] Having mouth parts directed forward. see hypognathous, opisthogna-thous.
progoneate a. [Gr. pro, before; gonos, offspring] Having the genital opening in the anterior region of the body. see op-isthogoneate.
prograde a. [Gr. pro, before; L. gradus, step] (ARTHRO: Chelicerata) In spiders, having the dorsal surface of the leg uppermost.
progredientes n.pl. [L. progrediens, advancing] (ARTHRO: In-secta) In Adelgidae, nymphs of the third generation that soon develop into wingless agamic females.
progressive provisioning The practice of feeding the young during their development. see mass provisioning.
progynous a. [Gr. pro, anterior; gyne, woman] (ANN: Oli-gochaeta) Having ovaries restricted to segment xii or a homoeotic equivalent.
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