Dictionary search results

Showing 1-38 of 38 results

membrane US English

A pliable sheetlike structure acting as a boundary, lining, or partition in an organism

membrane US Thesaurus

the sensitive membranes in the mouth

cell membrane US English

The semipermeable membrane surrounding the cytoplasm of a cell

membrane bone US English

Bone, or a bone, that develops within a sheet of mesenchymal tissue without prior formation of a cartilaginous primordium.

pit membrane US English

The relatively thin area of primary cell wall and middle lamella at the base of a pit, especially when this forms the common partition between the opposed pits of a pit pair.

unit membrane US English

A lipoprotein membrane that encloses many cells and cell organelles and is composed of two electron-dense layers enclosing a less dense layer

membrane filter US English

A sheet or film of a polymer (originally collodion) that has pores of a uniform size, used especially for ultrafiltration.

membrane keypad US English

A keypad in which the keys are membrane switches rather than push-buttons.

membrane switch US English

A touch-sensitive switch in which an electrical circuit is made between two contacts by depressing a flexible covering membrane of electrically resistive material.

mucous membrane US English

An epithelial tissue that secretes mucus and that lines many body cavities and tubular organs including the gut and respiratory passages

plasma membrane US English

A microscopic membrane of lipids and proteins that forms the external boundary of the cytoplasm of a cell or encloses a vacuole, and that regulates the passage of molecules in and out of the cytoplasm

purple membrane US English

A membrane containing photoactive pigments which is produced under certain conditions in the archaebacterium Halobacterium salinarium.

serous membrane US English

A mesothelial tissue that lines certain internal cavities of the body, forming a smooth, transparent, two-layered membrane lubricated by a fluid derived from serum. The peritoneum, pericardium, and pleura are serous membranes

adipose membrane US English

Anatomy (now rare) = adipose tissue; compare cellular membrane.

basement membrane US English

A thin, delicate membrane of protein fibers and glycosaminoglycans separating an epithelium from underlying tissue

basilar membrane US English

A membrane in the cochlea that bears the organ of Corti

cellular membrane US English

Loose connective tissue (in early use especially adipose tissue) (now disused).

germinal membrane US English

= blastoderm (now rare).

hyaloid membrane US English

A thin transparent membrane enveloping the vitreous humor of the eye

internal membrane US English

Anatomy. A membrane lining a part of the body, especially a mucous membrane or endothelium. Now rare.

membrane potential US English

A voltage difference across a cell membrane or other semipermeable biological or synthetic membrane, resulting from an unequal distribution of diffusible ions on either side of the membrane.

Nasmyth's membrane US English

A transient membrane covering the crown of a newly erupted tooth; the primary enamel cuticle.

nictating membrane US English

= nictitating membrane.

nuclear membrane US English

= nuclear envelope.

obturator membrane US English

A sheet of fibrous tissue that occupies most of the obturator foramen.

otolithic membrane US English

The membrane overlying the macula of the utricle, saccule, or lagena.

pituitary membrane US English

(Now rare) a mucous membrane, especially the olfactory membrane of the nasal cavities.

Reissner's membrane US English

The vestibular membrane, which separates the cochlear duct and the vestibular canal in the labyrinth of the inner ear.

tympanic membrane US English

A membrane forming part of the organ of hearing, which vibrates in response to sound waves. In humans and other higher vertebrates it forms the eardrum, between the outer and middle ear

vitelline membrane US English

A transparent membrane surrounding and secreted by the fertilized ovum, preventing the entry of further spermatozoa

arthrodial membrane US English

Any of the thin, flexible areas of the cuticle of an arthropod located between the segments of the body and limbs.

biological membrane US English

A membrane of biological origin; especially that surrounding a cell or organelle and consisting chiefly of a lipid bilayer.

membrane filtration US English

Filtration by means of a membrane filter.

nictitating membrane US English

A whitish or translucent membrane that forms an inner eyelid in birds, reptiles, and some mammals. It can be drawn across the eye to protect it from dust and keep it moist

periodontal membrane US English

The periodontal ligament.

hyaline membrane disease US English

A condition in newborn babies in which the lungs are deficient in surfactant, preventing their proper expansion and causing the formation of hyaline material in the lung spaces

arachnoid US English

Like a spider or arachnid

nictitant membrane in nictitant US English

Adapted for winking or blinking; nictitating. Also (occasionally): giving the appearance of winking or blinking.

You searched for membrane