3 results for: cells

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American Heritage Dictionary - Cite This Source - Share This

cell Audio Help (sěl) Pronunciation Key

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n.

A narrow confining room, as in a prison or convent.
A small enclosed cavity or space, such as a compartment in a honeycomb or within a plant ovary or an area bordered by veins in an insect's wing.
Biology The smallest structural unit of an organism that is capable of independent functioning, consisting of one or more nuclei, cytoplasm, and various organelles, all surrounded by a semipermeable cell membrane.
Architecture See web.
The smallest organizational unit of a centralized group or movement, especially of a political party of Leninist structure.
Electricity
1. A single unit for electrolysis or conversion of chemical into electric energy, usually consisting of a container with electrodes and an electrolyte; a battery. Also called electrochemical cell.
2. A single unit that converts radiant energy into electric energy: a solar cell.
A fuel cell.
Computer Science A basic unit of storage in a computer memory that can hold one unit of information, such as a character or word.
A geographic area or zone surrounding a transmitter in a cellular telephone system.
A storm cell.
A small humble abode, such as a hermit's cave or hut.
A small religious house dependent on a larger one, such as a priory within an abbey.
A box or other unit on a spreadsheet or similar array at the intersection of a column and a row.

v.   celled, cell·ing, cells

v.   tr.
To store in a honeycomb.

v.   intr.
To live in or share a prison cell.

[Middle English celle, from Old English cell and from Old French, both from Latin cella, chamber; see kel-¹ in Indo-European roots.]

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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

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cells

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The American Heritage Science Dictionary - Cite This Source - Share This

cell Audio Help (sěl) Pronunciation Key

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The basic unit of living matter in all organisms, consisting of protoplasm enclosed within a cell membrane. All cells except bacterial cells have a distinct nucleus that contains the cell's DNA as well as other structures (called organelles) that include mitochondria, the endoplasmic reticulum, and vacuoles. The main source of energy for all of a cell's biological processes is ATP. See more at eukaryote , prokaryote.
Any of various devices, or units within such devices, that are capable of converting some form of energy into electricity. Cells contain two electrodes and an electrolyte. See more at electrolytic cell , solar cell , voltaic cell.

cellular adjective

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