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Having a transverse position; placed or situated across; hence, opposite. "Our overthwart neighbors." Dryden.

Situated on either side of the notochord; -- applied especially to the cartilaginous rudiments of the skull on each side of the anterior part of the notochord. -- n.

Situated beside, or near, the mastoid portion of the temporal bone; paroccipital; -- applied especially to a process of the skull in some animals.

A special plate situated on the sides of the mesothorax and metathorax of certain insects.

Near the sphenoid bone; -- applied especially to a bone situated immediately beneath the sphenoid in the base of the skull in many animals. -- n.

A small body containing convoluted tubules, situated near the epididymis in man and some other animals, and supposed to be a remnant of the anterior part of the Wolffian body.

Situated near or beside the occipital condyle or the occipital bone; paramastoid; -- applied especially to a process of the skull in some animals.

Situated near the ear; -- applied especially to the salivary gland near the ear.

One of a pair of small vesicular organs situated at the bases of the anterior wings of lepidopterous insects. See Illust. of Butterfly.

and abbots, and sometimes also by canons. -- Pectorial fins, or Pectorials (Zoöl.), fins situated on the sides, behind the gills. See Illust. under Fin. -- Pectorial rail. (Zoöl.) See Land rail (b) under Land. -- Pectorial sandpiper (Zoöl.), the jacksnipe (b).

es, and allied genera of Alcyonaria, having a featherlike form; a sea-pen. The zooids are situated along one edge of the side branches.

Of or pertaining to pericardium; situated around the heart. Pericardial fluid (Physiol.), a serous fluid of a pale yellow color contained in the pericardium.

Of or pertaining to the perichondrium; situated around cartilage.

Of or pertaining to a nucleus; situated around a nucleus; as, the perinuclear protoplasm.

Situated around bone; of or pertaining to the periosteum.

Surrounding, or situated about, the petals.

Situated around the vitellus, or between the vitellus and zona pellucida of an ovum.

Situated around the radii, or radial tubes, of a radiate.

e pituitary fossa. Pituitary body or gland (Anat.), a glandlike body of unknown function, situated in the pituitary fossa, and connected with the infundibulum of the brain; the hypophysis. -- Pituitary fossa (Anat.), the ephippium.

-- Plane at infinity (Geom.), a plane in which points infinitely distant are conceived as situated. -- Plane iron, the cutting chisel of a joiner's plane. -- Plane of polarization. (Opt.) See Polarization. -- Plane of projection. (a) The plane on which the projection is made, corresponding to the perspective plane i…