| oral contraception | contraception achieved by taking oral contraceptive pills |
oral sex
head | oral stimulation of the genitals, they say he gives good head |
blastocoel
blastocoele
blastocele
segmentation cavity
cleavage cavity | the fluid-filled cavity inside a blastula |
chorioallantois
chorioallantoic membrane | the very vascular fetal membrane composed of the fused chorion and adjacent wall of the allantois |
| cavity wall | a wall formed of two thicknesses of masonry with a space between them |
| membrane | a thin pliable sheet of material |
pill birth control pill
contraceptive pill
oral contraceptive pill
oral contraceptive
anovulatory drug
anovulant | a contraceptive in the form of a pill containing estrogen and progestin to inhibit ovulation and so prevent conception |
resonator cavity resonator
resonating chamber | a hollow chamber whose dimensions allow the resonant oscillation of electromagnetic or acoustic waves |
Sabin vaccine
oral poliovirus vaccine
OPV
trivalent live oral poliomyelitis vaccine
TOPV | an oral vaccine (containing live but weakened poliovirus) that is given to provide immunity to poliomyelitis |
| oral personality | (psychoanalysis) a personality characterized either by generous optimism or aggressive and ambitious selfishness, formed in early childhood by fixation during the oral stage of development |
| oral smear | alimentary tract smear of material obtained from the mouth |
| membrane bone | any bone that develops within membranous tissue without previous cartilage formation, e.g. the clavicle and bones of the skull |
glenoid fossa
glenoid cavity | the concavity in the head of the scapula that receives the head of the humerus to form the shoulder joint |
| pulp cavity | the central cavity of a tooth containing the pulp (including the root canal) |
eye socket
orbit
cranial orbit
orbital cavity | the bony cavity in the skull containing the eyeball |
| basilar membrane | a membrane in the cochlea that supports the organ of Corti |
mouth oral cavity
oral fissure
rima oris | the opening through which food is taken in and vocalizations emerge, he stuffed his mouth with candy |
| buccal cavity | the cavity between the jaws and the cheeks |
cavity
bodily cavity
cavum | (anatomy) a natural hollow or sinus within the body |
caul
veil
embryonic membrane | the inner membrane of embryos in higher vertebrates (especially when covering the head at birth) |
| fetal membrane | any membrane that functions for the protection or nourishment or respiration or excretion of a developing fetus |
cell membrane
cytomembrane
plasma membrane | a thin membrane (a double layer of lipids) enclosing the cytoplasm of a cell, proteins in the membrane control passage of ions (like sodium or potassium or calcium) in and out of the cell, all cells have a cell membrane |
nictitating membrane
third eyelid | a protective fold of skin in the eyes of reptiles and birds and some mammals |
eardrum
tympanum
tympanic membrane
myringa | the membrane in the ear that vibrates to sound |
| fertilization membrane | the membrane that forms around a fertilized ovum and prevents penetration by additional spermatozoon |
hyaloid membrane
hyaloid | the transparent membrane enveloping the vitreous humor of the eye and separating it from the retina |
middle ear
tympanic cavity
tympanum | the main cavity of the ear, between the eardrum and the inner ear |
mucous membrane
mucosa | mucus-secreting membrane lining all body cavities or passages that communicate with the exterior |
| pleural cavity | the cavity in the thorax that contains the lungs and heart |
cranial cavity
intracranial cavity | the cavity enclosed by the cranium |
| amniotic cavity | the fluid-filled cavity that surrounds the developing embryo |
mucus
mucous secretion | protective secretion of the mucus membranes, in the gut it lubricates the passage of food and protects the epithelial cells, in the nose and throat and lungs it can make it difficult for bacteria to penetrate the body through the epithelium |
membrane
tissue layer | a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants |
peritoneal cavity
greater peritoneal sac | the interior of the peritoneum, a potential space between layers of the peritoneum |
bursa omentalis
omental bursa
lesser peritoneal cavity | an isolated part of the peritoneal cavity that is dorsal to the stomach |
pericardial cavity
pericardial space | the space between the layers of the pericardium that contains fluid that lubricates the membrane surfaces and allows easy heart movement |
| semipermeable membrane | a membrane (as a cell membrane) that allows some molecules to pass through but not others |
arachnoid
arachnoid membrane | the middle of the meninges |
| uterine cavity | the space inside the uterus between the cervical canal and the Fallopian tubes |
hymen
maidenhead
virginal membrane | a fold of tissue that partly covers the entrance to the vagina of a virgin |
| nasal cavity | either of the two cavities lying between the floor of the cranium and the roof of the mouth and extending from the face to the pharynx |
| tubular cavity | a cavity having the shape of a tube |
armpit
axilla
axillary cavity
axillary fossa | the hollow under the arm where it is joined to the shoulder, they were up to their armpits in water |
chest cavity
thoracic cavity | the cavity in the vertebrate body enclosed by the ribs between the diaphragm and the neck and containing the lungs and heart |
abdominal cavity
abdomen | the cavity containing the major viscera, in mammals it is separated from the thorax by the diaphragm |
acetabulum
cotyloid cavity | the cup-shaped hollow in the hipbone into which the head of the femur fits to form a ball-and-socket joint |
| pelvic cavity | the space bounded by the bones of the pelvis and containing the pelvic viscera |
serous membrane
serosa | a thin membrane lining the closed cavities of the body, has two layers with a space between that is filled with serous fluid |
synovial membrane
synovium | a thin membrane in synovial (freely moving) joints that lines the joint capsule and secretes synovial fluid |
| oral contract | an agreement that is not in writing and is not signed by the parties but is a real existing contract that lacks only the formal requirement of a memorandum to render it enforceable in litigation |