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Pertaining to, or connected with, a fetus; as, fetal circulation; fetal membranes.

A crystalline, transparent, colorless substance found in the allantoic liquid of the fetal calf; -- formerly called allantoic acid and amniotic acid.

An instrument for cutting into the fetal head, to facilitate delivery.

Craniotomy; -- usually applied to bisection of the fetal head with a saw.

The operation of opening the fetal head, in order to effect delivery.

in the skull. Ethmovomerine plate (Anat.), a cartilaginous plate beneath the front of the fetal brain which the ethmoid region of the skull is developed.

Same as Fetal.

anous intervals between the incompleted angles of the parietal and neighboring bones of a fetal or young skull; -- so called because it exhibits a rhythmical pulsation.

Blood formative; -- applied to a substance in early fetal life, which breaks up gradually into blood vessels.

(Med.), a lodgment of something in a strait or passage of the body; as, impaction of the fetal head in the strait of the pelvis; impaction of food or feces in the intestines of man or beast.

A forceps with a measuring attachment for ascertaining the size of the fetal head.

The contents of the fetal intestine; hence, first excrement.

mor, now restricted to a variety of malignant growth made up of cells resembling those of fetal development without any proper intercellular substance.

e occipital in the base of the skull of the higher vertebrates. It is composed of several fetal bones which become united the adult. See Alisphenoid, Basisphenoid, Orbitosphenoid, Presphenoid.

squamosal and zygomatic bones; -- applied to a bone, or a center of ossification, in some fetal skulls. -- n.

which lies in the upper part of the thorax and lower part of the throat. It is largest in fetal and early life, and disappears or becomes rudimentary in the adult.