Most amphibians have caducous gills.    From Wordnet, Princeton University. 

The first and the second glumes are unequal, persistent or separately caducous.    From Wordnik.com.  [A Handbook of Some South Indian Grasses] Reference

As “cloud racks up” above the lake, the poem racks up definitions for oligotrophic, eutrophic, caducous, absyssal, meanings for Toronto and Ontario.    From Wordnik.com.  [Sheryda Warrener reads Karen Solie] Reference

Calyx with 5 erect segments, imbricated, caducous.    From Wordnik.com.  [The Medicinal Plants of the Philippines] Reference

Leaves alternate, compound, digitate, caducous; leaflets 5-7 with long common petiole.    From Wordnik.com.  [The Medicinal Plants of the Philippines] Reference

Papaver and Epimedium are inftances of the caducous calyx: Aclcea and Thr. liclriim, of caducous petals. —.    From Wordnik.com.  [The language of botany : being a dictionary of the terms made use of in that science, principally by Linneus ...] Reference

They are annually caducous, however, as with the common deer, so that these immense appendages are the growth of.    From Wordnik.com.  [The Hunters' Feast Conversations Around the Camp Fire] Reference

A slender, twining plant with leaves 3 'by 1', opposite, oval, acute, entire, long petioles and caducous stipules.    From Wordnik.com.  [The Medicinal Plants of the Philippines] Reference

10: 39: Five straight correct answers, none of which I've ever heard of: inconcinnity, scalare, caducous, venturi and forzato.    From Wordnik.com.  [Spelling Bee semifinals, live] Reference

A tree, 4-6 meters high, with drooping limbs; leaves long, very narrow, abruptly pinnate; many caducous leaflets, linear, elliptical.    From Wordnik.com.  [The Medicinal Plants of the Philippines] Reference

Cassiae closely allied to the aphyllous species; they have only one pair of foliola which are caducous, and whose persistent footstalk is more or less vertically compressed.    From Wordnik.com.  [Expedition into Central Australia] Reference

He is exceedingly well formed and graceful; his horns are not so large as those of the stag, but, like his, they are annually caducous, falling off in the winter and returning in the spring.    From Wordnik.com.  [The Hunters' Feast Conversations Around the Camp Fire] Reference

I anticipate another anatomical discovery, that this organ will be found to be cortical and caducous, that they are superficially morose, but at last tender-hearted, herein differing from Rome and the Latin nations.    From Wordnik.com.  [English Traits (1856)] Reference

Furthermore, the horns -- or rather antlers -- of the deer are caducous, shedding annually; while those of the antelopes are persistent, remaining throughout the life-time of the animal -- as with goats, sheep, and oxen.    From Wordnik.com.  [Quadrupeds, What They Are and Where Found A Book of Zoology for Boys] Reference

Along with these, and nearly related to them, are found several species of Cassia, having from two to four or five pairs of foliola which are narrow, but their footstalks are without vertical compression, and their foliola are caducous, chiefly in those, however, which have only two pairs.    From Wordnik.com.  [Expedition into Central Australia] Reference

Style short, caducous.    From Wordnik.com.  [The Medicinal Plants of the Philippines] Reference

Calyx, 5 caducous lobules.    From Wordnik.com.  [The Medicinal Plants of the Philippines] Reference

Calyx gamosepalous, caducous, 4-5 short teeth.    From Wordnik.com.  [The Medicinal Plants of the Philippines] Reference

It was caducous.    From Wordnik.com.  [Essays — Second Series] Reference

Calyx, 5 unequal petaloid segments, imbricated, caducous.    From Wordnik.com.  [The Medicinal Plants of the Philippines] Reference

Calyx, 5 rounded sepals, tuberculate at the base, imbricated, caducous.    From Wordnik.com.  [The Medicinal Plants of the Philippines] Reference