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lamella

 - 8 dictionary results

la⋅mel⋅la

  [luh-mel-uh]
Use lamella in a Sentence
–noun, plural -mel⋅lae  [-mel-ee] , -mel⋅las.
1. a thin plate, scale, membrane, or layer, as of bone, tissue, or cell walls.
2. Botany.
a. an erect scale or blade inserted at the junction of the claw and limb in some corollas and forming a part of their corona or crown.
b. (in mosses) a thin sheet of cells standing up along the midrib of a leaf.
3. Mycology. gill 1 (def. 2).
4. Building Trades. a member of wood, metal, or reinforced concrete, joined in a crisscross pattern with other lamellae to form a vault.
5. Ophthalmology. a small disk of gelatin and glycerin mixed with a medicinal substance, used as a medicament for the eyes.
Origin:
1670–80; < L lāmella, dim. of lāmina lame 2

gill

1  [gil]
–noun
1. the respiratory organ of aquatic animals, as fish, that breathe oxygen dissolved in water.
2. Also called lamella. one of the radiating vertical plates on the underside of the cap of an agaric mushroom.
3. ground ivy.
–verb (used with object)
4. to gut or clean (fish).
—Idioms
5. to catch (fish) by the gills in a gill net.
6. green or white around the gills, somewhat pale, as from being sickly, nervous, or frightened: When he heard how much the bill was, he looked a little green around the gills.
7. to the gills, Informal. fully; completely; totally: After that big meal we were all stuffed to the gills.
Origin:
1300–50; ME gile < Scand; cf. ON gjǫlnar < *gelnō; c. Swed gäl, Dan gælle, Norw gjelle gill

Related forms:
gill-less, adjective
gill-like, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To lamella
la·mel·la   (lə-měl'ə)   
n.   pl. la·mel·lae (-měl'ē') or la·mel·las
A thin scale, plate, or layer of bone or tissue, as in the gills of a bivalve mollusk or around the minute vascular canals in bone.

[Latin lāmella, small thin plate, diminutive of lāmina, thin plate.]
la·mel'lar adj., la·mel'lar·ly adv.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

Gill 
fem. proper name, see Jill.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: 2gill
Pronunciation: 'gil
Function: noun
1 : an organ (as of a fish) for obtaining oxygen from water
2 : one of the radiating plates forming the undersurface of the cap of a mushroom —gilled /'gild/ adjective

Main Entry: la·mel·la
Pronunciation: l&-'mel-&
Function: noun
Inflected Form: plural la·mel·lae /-'me-"lE,-"lI/ also lamellas
1 : an organ, process, or part resembling a plate: as a : one of the bony concentric layers surrounding the haversiancanals in bone b (1) : one of the incremental layers of cementum laid down in a tooth (2) : a thin sheetlike organic structure in the enamel of a tooth extending inward from asurface crack
2 : a small medicated disk prepared from gelatin and glycerin for use especially in the eyes <lamellae of atropine>
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

lamella la·mel·la (lə-měl'ə)
n. pl. la·mel·las or la·mel·lae (-měl'ē')

  1. A thin scale, plate, or layer of bone or tissue, as around the minute vascular canals in bone.

  2. A medicated gelatin disk, used instead of a solution for application to the conjunctiva. Also called disk.

la·mel'lar adj.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
gill   (gĭl)  Pronunciation Key 


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  1. The organ that enables most aquatic animals to take dissolved oxygen from the water. It consists of a series of membranes that have many small blood vessels. Oxygen passes into the bloodstream and carbon dioxide passes out of it as water flows across the membranes.

  2. One of the thin strips of tissue on the underside of the cap of many species of basidiomycete fungi. Gills produce the spore-bearing structures known as basidia.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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