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A temporary blindness, or impairment of sight, said to be caused by sleeping in the moonlight; -- sometimes called nyctalopia.

und in the Southern United States. It has persistent external gills and only the anterior pair of legs. See Siren. -- Mud frog (Zoöl.), a European frog (Pelobates fuscus). -- Mud hen. (Zoöl.) (a) The American coot (Fulica Americana). (b) The clapper rail. -- Mud lark, a person who cleans sewers, or delves in mud. [S…

Of, pertaining to, or discovered by, Johannes Müller. Müllerian ducts (Anat.), a pair of embryonic ducts which give rise to the genital passages in the female, but disappear in the male. -- Müllerian fibers (Anat.), the sustentacular or connective-tissue fibers which form the framework of the retina.…

Having many pairs of leaflets.

A tax or toll paid for building or repairing the walls of a fortified town.

One who had charge of the wall of a town, or its repairs.

p of numerous similar segments, nearly all of which bear true jointed legs. They have one pair of antennæ, three pairs of mouth organs, and numerous trachaæ, similar to those of true insects. The larvæ, when first hatched, often have but three pairs of legs. See Centiped, Galleyworm, Milliped.

r of curious parasitic worms found on crinoids. The body is short and disklike, with four pairs of suckers and five pairs of hook-bearing parapodia on the under side.

A crustacean larva having three pairs of locomotive organs (corresponding to the antennules, antennæ, and mandibles), a median eye, and little or no segmentation of the body.

luding numerous species, of marine chætopod annelids, having a well-formed head, with two pairs of eyes, antennæ, four pairs of tentacles, and a protrusile pharynx, armed with a pair of hooked jaws.

The process of tying together the ends of yarns in pairs, to prevent tangling.

A condition of nervous debility supposed to be dependent upon impairment in the functions of the spinal cord.

An order of hexapod insects having two pairs of large, membranous, net-veined wings. The mouth organs are adapted for chewing. They feed upon other insects, and undergo a complete metamorphosis. The ant-lion, hellgamite, and lacewing fly are examples. Formerly, the name was given to a much more extensive group, includi…

That which nourishes; anything which promotes growth and repairs the natural waste of animal or vegetable life; food; aliment. The stomach returns what it has received, in strength and nutriment diffused into all parts of the body. South.

by which the living tissues take up, from the blood, matters necessary either for their repair or for the performance of their healthy functions.

cidentally looked upon a nymph; ecstasy. [R.] De Quincey. The nympholepsy of some fond despair. Byron.

re now brought forth from obscurity, to be contemplated by artists with admiration and despair. Macaulay.

ng to the movement of the eye; -- applied especially to the common motor nerves (or third pair of cranial nerves) which supply many of the muscles of the orbit. -- n.

Not paired with another, or remaining over after a pairing; without a mate; unmatched; single; as, an odd shoe; an odd glove.

Of or pertaining to the eye; ocular; as, the optic nerves (the first pair of cranial nerves) which are distributed to the retina. See Illust. of Brain, and Eye.