94 results found

Search Results for: shell

Shell

shell 1. A hard outside covering, as of a fruit or an animal. Specifically: The covering, or outside part, of a nut; as, a... Read More

Top-shell

top-shell (Science: zoology) Any one of numerous species of marine top-shaped shells of the genus Thochus, or family... Read More

Eggshell

Eggshell 1. The shell or exterior covering of an egg. Also used figuratively for anything resembling an eggshell. 2.... Read More

Diffusion shell

Diffusion shell a small vessel made of a semipermeable membrane through which peptone, but not serum albumin, can pass; used... Read More

Nutshell

nutshell 1. The shell or hard external covering in which the kernel of a nut is inclosed. 2. Hence, a thing of little... Read More

Scallop

scallop 1. (Science: zoology) Any one of numerous species of marine bivalve mollusks of the genus pecten and allied genera... Read More

Actions of Caffeine in the Brain with Special Reference to Factors That Contribute to Its Widespread Use

IV. Actions of Caffeine on Brain Functions and Behavior Having discussed the molecular and neuronal actions of caffeine,... Read More

Involute

Definition adjective (1) (botany) Curled, spiraled, or rolled inwards, such as an involute leaf where margins are rolled... Read More

Wings

wing-shell (Science: zoology) Any one of various species of marine bivalve shells belonging to the genus avicula, in which... Read More

Torpedo

torpedo Origin: L. Torpedo, -inis, from torpere to be stiff, numb, or torpid. See Torpid. 1. (Science: zoology) Any one of... Read More

Test

Definition noun, plural: tests (1) An examination or evaluation. (2) (zoology) The external, protective shell, covering or... Read More

Button

Button 1. A knob; a small ball; a small, roundish mass. 2. A catch, of various forms and materials, used to fasten together... Read More

Kernel

Kernel 1. The essential part of a seed; all that is within the seed walls; the edible substance contained in the shell of a... Read More

Univalves

univalve (Science: zoology) A shell consisting of one valve only; a mollusk whose shell is composed of a single piece, as... Read More

Incisura

Definition noun, plural: incisurae A notch; an indent; a small hollow Supplement Incisura is a Latin word for incisure... Read More

Oyster

oyster 1. (Science: marine biology, zoology) Any marine bivalve mollusk of the genus ostrea. They are usually found adhering... Read More

Carboxysome

Carboxysome is a protein-shell micro-compartment inside bacterial cell and is involved chiefly in carbon fixation. It is a... Read More

Microsphere

A spherical shell that is usually made of a biodegradable or resorbable plastic polymer, that has a very small diameter... Read More

Valence electron

Definition noun, plural: valence electrons Any of the electrons on the outermost shell of an atom and takes part in chemical... Read More

Siphon

siphon 1. A device, consisting of a pipe or tube bent so as to form two branches or legs of unequal length, by which a... Read More

Steam

steam 1. To emit steam or vapor. My brother's ghost hangs hovering there, O'er his warm blood, that steams into the air.... Read More

Umbrella

umbrella 1. A shade, screen, or guard, carried in the hand for sheltering the person from the rays of the sun, or from rain... Read More

Galea

Galea 1. (Science: botany) The upper lip or helmet-shaped part of a labiate flower. 2. (Science: surgery) a kind of bandage... Read More

Ammonite

Ammonite (Science: paleontology) a fossil cephalopod shell related to the nautilus. There are many genera and species, and... Read More

Reins

reins 1. The kidneys; also, the region of the kidneys; the loins. 2. The inward impulses; the affections and passions; so... Read More

Melon

melon 1. (Science: botany) The juicy fruit of certain cucurbitaceous plants, as the muskmelon, watermelon, and citron melon;... Read More

Slug

slug 1. A drone; a slow, lazy fellow; a sluggard. 2. A hindrance; an obstruction. 3. (Science: zoology) Any one of numerous... Read More

Violet

violet 1. (Science: botany) Any plant or flower of the genus viola, of many species. The violets are generally low,... Read More

Lac

Lac a resinous substance produced mainly on the banyan tree, but to some extent on other trees, by the coccus lacca, a... Read More

Organelle

An organelle refers to any of the various cellular structures that perform a distinctive function inside a cell. The cell is... Read More

Cyanobacteria

Cyanobacteria is a phylum comprised of photosynthetic bacteria that live in aquatic habitats and moist soils. Others are... Read More

Diffusion

Diffusion Definition Diffusion is the net passive movement of molecules or particles from regions of higher to regions of... Read More

Skull

skull A school, company, or shoal. A knavish skull of boys and girls did pelt at him. These fishes enter in great flotes and... Read More

Prokaryote

Prokaryote refers to any of the group of organisms primarily characterized by the lack of true nucleus and other... Read More

Mutualism

Mutualism Definition What is mutualism? In biology and ecology, a mutualism is a form of symbiosis that is characterized by... Read More

Gyration

Gyration 1. The act of turning or whirling, as around a fixed center; a circular or spiral motion; motion about an axis;... Read More

Endomembrane system

Ever wondered how biomolecules are made within the cell and then they are released outside the cell for use by the body?... Read More

Why Is The Mary River Turtle Endangered

The Mary River TurtleĀ  (Elusor macrurus) has been named recently as one of the species on the brink of extinction. That is... Read More

Effect of Chemicals on Growth & Development in Organisms

Plants Plants require a large number of elements to function properly, mainly carbon, oxygen, and hydrogen, essentially... Read More

Neural Control Mechanisms

Nerve cells called neurons generate electric signals that pass from one end of the cell to another and release chemical... Read More