| gunk | | |
| n. (substance) | 1. goo, gook, goop, guck, gunk, muck, ooze, slime, sludge | any thick, viscous matter. |
| ~ matter | that which has mass and occupies space.; "physicists study both the nature of matter and the forces which govern it" |
| ~ sapropel | sludge (rich in organic matter) that accumulates at the bottom of lakes or oceans. |
| membrane | | |
| n. (artifact) | 1. membrane | a thin pliable sheet of material. |
| ~ drumhead, head | a membrane that is stretched taut over a drum. |
| ~ gel, gelatin | a thin translucent membrane used over stage lights for color effects. |
| ~ flat solid, sheet | a flat artifact that is thin relative to its length and width. |
| n. (body) | 2. membrane, tissue layer | a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants. |
| ~ trophoblast | the membrane that forms the wall of the blastocyst in early development; aids implantation in the uterine wall.; "after implantation of the blastocyst in the uterine wall the trophoblast divides into two layers, the chorion and the placenta" |
| ~ chorioallantoic membrane, chorioallantois | the very vascular fetal membrane composed of the fused chorion and adjacent wall of the allantois. |
| ~ web | membrane connecting the toes of some aquatic birds and mammals. |
| ~ bowman's capsule, capsula glomeruli, glomerular capsule | thin double membrane surrounding the glomerulus of a nephron. |
| ~ animal tissue | the tissue in the bodies of animals. |
| ~ axolemma | outer membrane covering an axon. |
| ~ basilar membrane | a membrane in the cochlea that supports the organ of Corti. |
| ~ fetal membrane | any membrane that functions for the protection or nourishment or respiration or excretion of a developing fetus. |
| ~ choroid, choroid coat | a highly vascular membrane in the eye between the retina and the sclera; a dark pigmentation minimizes the scattering of light inside the eye. |
| ~ ciliary body | the part of the tunic of the eye between the choroid coat and the iris.; "the ciliary body produces aqueous humor" |
| ~ cornea | the transparent dome-shaped anterior portion of the outer covering of the eye; it covers the iris and pupil and is continuous with the sclera. |
| ~ diaphragm, midriff | (anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration. |
| ~ eardrum, myringa, tympanic membrane, tympanum | the membrane in the ear that vibrates to sound. |
| ~ endocranium | membrane lining the inside of the skull. |
| ~ endosteum | vascular membrane that lines the inner surface of long bones. |
| ~ ependyma | thin epithelial membrane lining the ventricles of the brain and the spinal cord canal. |
| ~ fertilization membrane | the membrane that forms around a fertilized ovum and prevents penetration by additional spermatozoon. |
| ~ hyaloid, hyaloid membrane | the transparent membrane enveloping the vitreous humor of the eye and separating it from the retina. |
| ~ intima | the innermost membrane of an organ (especially the inner lining of an artery or vein or lymphatic vessel). |
| ~ iris | muscular diaphragm that controls the size of the pupil which in turn controls the amount of light that enters the eye; it forms the colored portion of the eye. |
| ~ lamella | a thin membrane that is one of the calcified layers that form bones. |
| ~ meninges, meninx | a membrane (one of 3) that envelops the brain and spinal cord. |
| ~ mucosa, mucous membrane | mucus-secreting membrane lining all body cavities or passages that communicate with the exterior. |
| ~ periosteum | a dense fibrous membrane covering the surface of bones (except at their extremities) and serving as an attachment for tendons and muscles; contains nerves and blood vessels that nourish the enclosed bone. |
| ~ perithelium | tissue layer around small blood vessels. |
| ~ retina | the innermost light-sensitive membrane covering the back wall of the eyeball; it is continuous with the optic nerve. |
| ~ sarcolemma | an extensible membrane enclosing the contractile substance of a muscle fiber. |
| ~ semipermeable membrane | a membrane (as a cell membrane) that allows some molecules to pass through but not others. |
| ~ serosa, serous membrane | 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. |
| ~ adventitia, tunic, tunica | an enveloping or covering membrane or layer of body tissue. |
| ~ phospholipid | any of various compounds composed of fatty acids and phosphoric acid and a nitrogenous base; an important constituent of membranes. |
| slime | | |
| v. (contact) | 1. slime | cover or stain with slime.; "The snake slimed his victim" |
| ~ begrime, bemire, colly, dirty, grime, soil | make soiled, filthy, or dirty.; "don't soil your clothes when you play outside!" |
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