Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Having five similar parts.
  • adj. Having flower parts, such as petals, sepals, and stamens, in sets of five, as in the geranium.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. In five parts; made up of five parts.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Divided into, or consisting of, five parts; also, arranged in sets, with five parts in each set, as a flower with five sepals, five petals, five, or twice five, stamens, and five pistils.
  • adj. Belonging to the Pentamera.

from The Century Dictionary and Cyclopedia

  • Five-parted; five-jointed; composed or consisting of five parts or five sets of similar parts.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. divided into five parts; specifically, having each floral whorl consist of five (or a multiple of five) members

Etymologies

From penta- + -merous. (Wiktionary)

Examples

  • Adephagous: belonging to the Adephaga: pentamerous, predatory, terrestrial beetles with filiform antennae and predatory habits: see hydradephagous.

    Explanation of Terms Used in Entomology

  • Hydradephaga; - ous: applied to aquatic, predatory pentamerous beetles with filiform antennae: see adephagous.

    Explanation of Terms Used in Entomology

  • Thus, in both _Lilium lancifolium_ and _L. auratum_ the writer has frequently met with pentamerous flowers.

    Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants

  • In the British Adoxa the uppermost flower generally has two calyx-lobes with the other organs tetramerous, whilst the surrounding flowers generally have three calyx-lobes with the other organs pentamerous.

    VII. Miscellaneous Objections to the Theory of Natural Selection

  • It is so common to observe on the same plant, flowers indifferently tetramerous, pentamerous, &c., that I need not give examples; but as numerical variations are comparatively rare when the parts are few, I may mention that, according to De Candolle, the flowers of Papaver bracteatum offer either two sepals with four petals (which is the common type with poppies), or three sepals with six petals.

    VII. Miscellaneous Objections to the Theory of Natural Selection

  • This species resembles P. Sabiniana in the length of its seed-wing and in the color of its cone, but is distinct in the short triangular umbo, in its pentamerous leaf-fascicles and in the mottled dorsal surface of its nut.

    The Genus Pinus

  • To take an example, the group Pseudostrobus, characterized by pentamerous leaf-fascicles, appears in many systems.

    The Genus Pinus

  • So for a week he floated with the current of casual dissipation and then, caught for an hour by a refluent eddy of lonesomeness, -- four parts of the pentamerous clover-leaf were paired lovers, -- he penned a missive which might have changed much in his future career: He sent to Christian Schwan a formal proposal for the hand of

    The Life and Works of Friedrich Schiller

  • -- Diagram showing the arrangement of parts in a complete, regular, pentamerous flower: _s_, sepals; _p_, petals; _st_, stamens; _o_, ovaries.]

    Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants

  • So for a week he floated with the current of casual dissipation and then, caught for an hour by a refluent eddy of lonesomeness, ” four parts of the pentamerous clover-leaf were paired lovers, ” he penned a missive which might have changed much in his future career: He sent to Christian Schwan a formal proposal for the hand of Margarete.

    The Life and Works of Friedrich Schiller

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  • Century Dictionary (1 definition)

    Five-parted; five-jointed; composed or consisting of five parts or five sets of similar parts. Specifically – In entomology: Five-jointed, as a beetle's tarsus.

    March 10, 2011