pentamerous

[ pen-tam-er-uh s ]

/ pɛnˈtæm ər əs /

consisting of or divided into five parts.

Botany. (of flowers) having five members in each whorl.

Origin of pentamerous

From the New Latin word pentamerus, dating back to 1820–30. See penta-, -merous

pen·tam·er·ism, pen·tam·er·y, noun

Thus, in both Lilium lancifolium and L. auratum the writer has frequently met with pentamerous flowers.

Vegetable Teratology |Maxwell T. Masters
Pentamerous insects are those which have five joints in all their tarsi.

An Introduction to Entomology: Vol. III (of 4) |William Kirby
The Clerid, which M. Latreille has placed in the pentamerous section, vary considerably in the number of their tarsal joints.

An Introduction to Entomology: Vol. III (of 4) |William Kirby
To take an example, the group Pseudostrobus, characterized by pentamerous leaf-fascicles, appears in many systems.

The Genus Pinus |George Russell Shaw

Thus fig. 38 shows a pentamerous symmetrical flower, with dimerous pistil.

Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5 |Various

pentamerous

/ (pɛnˈtæmərəs) /

consisting of five parts, esp (of flowers) having the petals, sepals, and other parts arranged in groups of five

pentamerism, noun