Search the Dictionary

Having the edge or border cut or marked with segments of circles. See Scallop, n., 2.

med by the growth of a sporozoite or merozoite (in a cell or corpuscle of the host) which segment by superficial cleavage, without encystment or conjugation, into merozoites.

The third of the four pieces forming the upper part of a thoracic segment of an insect. It follows the scutum, and is followed by the small postscutellum; a scutella. See Thorax.

The second and largest of the four parts forming the upper surface of a thoracic segment of an insect. It is preceded by the prescutum and followed by the scutellum. See the Illust. under Thorax.

A typical figure, consisting of seven equal segments of a circle, used to denote the gifts of the Holy Chost, the seven sacraments as recognized by the Roman Catholic Church, etc. [R.]

istles; having or bearing a seta or setæ; setiferous; as, setigerous glands; a setigerous segment of an annelid; specifically (Bot.), tipped with a bristle.

the iron plate, having an inclined face, which forms the abutment for the voussoirs of a segmental arch. (b) A plate, cap, or shoe, having an inclined face to receive the nut of a diagonal brace, rod, or the end of an inclined strut, in a truss or frame. -- Skew bridge. See under Bridge, n. -- Skew curve (Geom.), a…

Divided into many narrow parts or segments by sharp incisions; laciniate.

A division of arachnids having large, powerful fangs and a segmented abdomen; -- called also Solpugidea, and Solpugides.

combining form or suffix from Gr. sw^ma (gen. sw`matos) the body; as in merosome, a body segment; cephalosome, etc.

One of the actual or ideal serial segments of which an animal, esp. an articulate or vertebrate, is composed; somatome; metamere. -- So*mit`ic, a.

order to deaden sounds. -- Sound bow, in a series of transverse sections of a bell, that segment against which the clapper strikes, being the part which is most efficacious in producing the sound. See Illust. of Bell. -- Sound post. (Mus.) See Sounding post, under Sounding.

phere upon a plane. See Projection. -- Spherical sector. See under Sector. -- Spherical segment, the segment of a sphere. See under Segment. -- Spherical triangle,re on the surface of a sphere, bounded by the arcs of three great circles which intersect each other. -- Spherical trigonometry. See Trigonometry. -- Sp…

Any one of the several symmetrical segments arranged around the central axis and composing the body of a radiate anmal.

have the mandibles converted into poison fangs, or falcers. The abdomen is large and not segmented, with two or three pairs of spinnerets near the end, by means of which they spin threads of silk to form cocoons, or nests, to protect their eggs and young. Many species spin also complex webs to entrap the insects upon…

much damage. It is smooth, with a black head and tail and a row of black dots across each segment.

e in number, and are usually situated on the sides of the thorax and abdomen, a pair to a segment. These openings are usually elliptical, and capable of being closed. See Illust. under Coleoptera.

One of the segments of the sternum. -- Ster"ne*bral, a.

A plate of cartilage, or a series of bony or cartilaginous plates or segments, in the median line of the pectoral skeleton of most vertebrates above fishes; the breastbone.

dy of the strobila becomes elongated, and subdivides transversely into a series of lobate segments which eventually become ephyræ, or young medusæ.