furca


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furca

any fork-like structure, such as that formed by the last two abdominal segments in some arthropods or which supports the two spongy pads on the proboscis of some insects.

furca,

n 1. the bone that separates the distal and mesial roots of molars.
n 2. the area where a tooth root divides.
furcal concavity
(fur´kəl konkav´itē),
n a depression present in the furcation area of the root of a tooth.
References in periodicals archive ?
Color varying from light purple to pink over dorsal great abdomen and antennae, head sparsely mottled, ventral body, legs and furca pale white (Fig.
Genital furca strongly sclerotized, Y-shaped, bilobed at proximal apex and median aperture a transparent membrane in distal part.
2]) about 250-275 [micro]m wide and 170-175 [micro]m long; with a narrow, complete median ridge (mdr); marginal ridges well developed; furca (f) with arms extending anteriorly to about halfway to marginal ridge (mr).
However, it is separable from the latter by the presence of a furca, a tenaculum, and the ventral chaetotaxy on abdominal segment III.
Maria Furcas, 69, suffered an allergic reaction when she was stung on the leg by a Portuguese man-of-war while swimming in the Mediterranean with her sister.