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o the thin, plicated, bony or cartilaginous plates which support the olfactory and mucous membranes of the nasal chambers.

Like a tympanum or drum; acting like a drumhead; as, a tympanic membrane.

Inflammation of the lining membrane of the middle ear.

The ear drum, or middle ear. Sometimes applied incorrectly to the tympanic membrane. See Ear.

A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane; as, the umbo in the integument of the larvæ of echinoderms or in the tympanic membrane of the ear.

or pertaining to a vagina; resembling a vagina, or sheath; thecal; as, a vaginal synovial membrane; the vaginal process of the temporal bone.

Inflammation of the vagina, or the genital canal, usually of its mucous living membrane.

A membrane connecting the margin of the pileus of a mushroom with the stalk; -- called also velum.

The marginal membrane of certain medusæ belonging to the Discophora.

l gastropod or bivalve mollusk in the state when it is furnished with one or two ciliated membranes for swimming.

A thin membrane surrounding the sporocarps of quillworts Isoetes).

bats of America and Europe, belonging to Vespertilio and allied genera. They lack a nose membrane.

are usually marked with dots, pits, rings, or spirals by internal deposition of secondary membranes; a duct. Acoustic vessels. See under Acoustic. -- Weaker vessel, a woman; -- now applied humorously. "Giving honor unto the wife, as unto the weaker vessel." 1 Peter iii. 7. "You are the weaker vessel." Shak.…

One of the minute papillary processes on certain vascular membranes; a villosity; as, villi cover the lining of the small intestines of many animals and serve to increase the absorbing surface.

and honor virginal." Spenser. Virginal generation (Biol.), parthenogenesis. -- Virginal membrane (Anat.), the hymen.

Of or pertaining to the yolk of eggs; as, the vitelline membrane, a smooth, transparent membrane surrounding the vitellus.

ulius, become over four feet long. They have a special cavity over the gills lined with a membrane adapted to retain moisture to aid in respiration, and are thus able to travel considerable distances over the land at night, whence the name. They construct a curious nest for their young. Called also langya. -- Walking…

The membrane which unites the fingers or toes, either at their bases, as in man, or for a greater part of their length, as in many water birds and amphibians.

Having the toes united by a membrane, or web; as, the webbed feet of aquatic fowls.

A foot the toes of which are connected by a membrane.