Fritta

Fritt; ammonitrum, is a mass of salt and ashes concreted with the sand in making glass.

Frond

A twig of a tree with its leaves; Linnaeus applies this term to the peculiar leafing of palms and ferns. Martyn says it was anciently written fruns, from pollulo, to germinate or bud.

Frondipora

See Eschara.

Frons

(From thought, as the supposed scat of thought). The forehead is that part above the eyes destitute of hair, extending from one temple to the other; but in ancient authors it sometimes means the whole countenance. In botany it means a leaf or branch, from fero, to bear.

Frontale

(From.frons, the forehead). Thename of a topical medicine applied to the forehead; anacol-tema (sec Cataplasma): it often means also a linen bag, in which cephalic ingredients are contained to be applied to the forehead. See Epithema.

Frontalis

Musculus verus. See Corru-gator coiterii.

Frontalis nervus. The fifth pair of nerves from the brain, sends off its first branch, called orbitarius et ramus supeerior, which is subdivided into three: the first is the frontal, which spreads on the upper part of the orbit of the eye, to the fat which surrounds the globe of the eye, the musculus elevator palpebrae, & c.

Frontalis sinus. The frontal sinus. There are two of these formed of the separated laminae of the os frontis; placed above the orbits, on each side the top of the nose: they are covered with the same membrane which lines the nostrils, and open into them; but are occasionally wanting.

Frontalis vena is a branch from the external jugular, forming a vein in the forehead, called by the ancients praeparata vena.

Fructificatio

(Fromfructifico, to make fruitful). Fructification, or fruiting, consists in the flower and fruit: and there is no fructification without anther, stigma, and seed. When perfect, it consists of seven parts. - 1. Calyx - 2. Corolla - 3. Stamen - 4. Pistil - 5. Pericarp - 6. Seed - 7. Receptacle. - Of these, the four first belong to the flower; the two next to the fruit; and the last is common to both. The pedicle of the flower or blossom is the stem of the fruit, and its fibres are expanded through the whole bulk. The epidermis forms the calyx, the next layer of the bark the liber, the wood the antherae, and the medulla the stigma. All previously exist; and in no instance is there any new formation: all is evolution only.

Fructus

(From fruor, to use, orfrom feri, Heb.). Fruit; carpos . It is properly the part of a plant wherein the seed is contained, but in general it is any seed or grain covered with a pulp or shell, or uncovered; but it is more strictly styled fruit when there is a pulpy-covering. For the nutritious properties of fruits, see Aliment. The chemists call metals the fruits of the earth.

Fructus umbilicatus. Umbilicated fruit is that on which the flower grows. The flower usually forms a cavity, called umbilicus, or navel, as in the medlar, hip.& c,