deciduate

English

Pronunciation

• (UK) IPA^(key): /dɪˈsɪdʒʊət/

Etymology 1

From decidua +‎ -ate (adjective-forming suffix).

Adjective

deciduate (not comparable)

1. (anatomy) Having, or characterized by, a decidua.

   deciduate placenta

Derived terms

• adeciduate
• indeciduate
• nondeciduate

 

Etymology 2

From the substantivation of the above adjective. Equivalent to decidua +‎ -ate (adjective-forming suffix).

Noun

deciduate (plural deciduates)

1. An animal that sheds a decidua.
   • 1884, Giovanni Battista Ercolani, The Reproductive process, page 405:

     In the non-deciduates this relation is one of simple contact; but this same relation has been likewise observed in mammiferous deciduates, whether they have the zonarial or the discoidal form of placenta.

   • 1905, Ernst Haeckel, ‎Joseph McCabe, The evolution of the species of phylogeny, page 616:

     Still more characteristic of the deciduates is the peculiar and very intimate connection between the chorion frondosum and the corresponding part of the mucous coat of the womb, which we must regard as a real coalescence of the two.

Etymology 3

From decidua +‎ -ate (verb-forming suffix).

Verb

deciduate (third-person singular simple present deciduates, present participle deciduating, simple past and past participle deciduated)

1. To shed or release (a part of itself).
   • 1998, Paul Schultz Martin, Gentry's R’o Mayo Plants, page 431:

     In favorable situations, the shrub carries leaves throughout the year, but more often it largely deciduates in the spring dry season .

   • 2005, The Bulletin - Volumes 6494-6500, page 68:

     When it rains, it deciduates its tart perfume and breathes it through the house.

   • 2007, Jerome Malitz, ‎Susan Malitz, Acadia National Park Dayhiker's Guide: Maine's Coastal Gem, page 9:

     The larch, looking like a scrawny spruce or fir, is unusual for a conifer: it deciduates in the fall , the needles turning yellow before they drop.

2. To be shed or released from what (the subject) was originally part of.
   • 1856, The British Controversialist:

     The Pythagorean Monad was not, therefore,to his mind, an abstraction in which no personality inhered; but a true living God, out of which All is, and in whom All exists; the eternal Being, out of which Existence springs, and from which Life, in its individual and personal forms, deciduates.

   • 1876, Sir William Turner, Lectures on the Comparative Anatomy of the Placenta:

     It follows, therefore, that the line of demarcation between a diffused non-deciduate, and a zonary deciduate placenta, is not so sharp as has usually been supposed, but is graded over by the ruminant polycotyledonary placenta, in which the epithelial layer is the preponderating if not the only element of the mucosa which deciduates during parturition.