Definition of Planaria

1. Noun. Free-swimming mostly freshwater flatworms; popular in laboratory studies for the ability to regenerate lost parts.

Exact synonyms: Planarian
Generic synonyms: Flatworm, Platyhelminth
Group relationships: Class Turbellaria, Turbellaria



Definition of Planaria

1. n. Any species of turbellarian worms belonging to Planaria, and many allied genera. The body is usually flat, thin, and smooth. Some species, in warm countries, are terrestrial.

Definition of Planaria

1. Noun. (plural of planarium) ¹

¹ Source: wiktionary.com

Definition of Planaria

1. an aquatic flatworm [n -S]

Medical Definition of Planaria

1. Origin: NL. See Planary. Any species of turbellarian worms belonging to Planaria, and many allied genera. The body is usually flat, thin, and smooth. Some species, in warm countries, are terrestrial. Source: Websters Dictionary (01 Mar 1998)

Planaria Pictures

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Lexicographical Neighbors of Planaria

plamodel
plamodels
plan
plan A
plan B
plan apochromatic objective lens
plan of action
plan of attack
plan on
plan out
plana
planar
planar graph
planar induction
planaria (current term)
planarian
planarians
planarias
planarida
planarioid
planarities
planarity
planarium
planarization
planarize
planarized
planarizes
planarizing
planarizings

Literary usage of Planaria

Below you will find example usage of this term as found in modern and/or classical literature:

1. Abstracts of the Papers Printed in the Philosophical Transactions of the by Royal Society (Great Britain) (1833)
"In the planaria torva, two ventral apertures are particularly distinct. The upper one gives passage to a long flexible tube, and the lower conducts to the ..."

2. The American Naturalist by American Society of Naturalists, Essex Institute (1902)
"IN a paper on planaria maculata, published in 1898, Morgan called attention to an ... More recently a paper by Bardeen on the physiology of planaria ..."

3. Senescence and Rejuvenescence by Charles Manning Child (1915)
"CHAPTER VII THE ROLE OF NUTRITION IN SENESCENCE AND REJUVENESCENCE IN planaria REDUCTION BY STARVATION IN planaria The various species of planaria are ..."

4. A Laboratory Manual for Elementary Zoölogy by Libbie Henrietta Hyman (1919)
"Take several planaria and cut them up into pieces of various shapes and sizes. ... Is any piece of planaria capable of regenerating a whole worm? ..."

5. Annals and Magazine of Natural History by William Jardine (1845)
"planaria fusca, Penn. Brit. Zool. iv. 68. Fasciola nigra, Mull. Verm. i. ii. 54. ... planaria fusca, Pallas, Templeton in Mag. N. Hist. ix. 239. ..."

6. Journal of the Royal Microscopical Society by Royal Microscopical Society, London (1878)
"Preservation of planaria.—Dr. Arnold Lang, of Bern, whilst staying at the zoological station at Naples this year was constantly occupied in the endeavour to ..."

7. Abstracts of the Papers Printed in the Philosophical Transactions of the by Royal Society (Great Britain) (1833)
"In the planaria torva, two ventral apertures are particularly distinct. The upper one gives passage to a long flexible tube, and the lower conducts to the ..."

8. The American Naturalist by American Society of Naturalists, Essex Institute (1902)
"IN a paper on planaria maculata, published in 1898, Morgan called attention to an ... More recently a paper by Bardeen on the physiology of planaria ..."

9. Senescence and Rejuvenescence by Charles Manning Child (1915)
"CHAPTER VII THE ROLE OF NUTRITION IN SENESCENCE AND REJUVENESCENCE IN planaria REDUCTION BY STARVATION IN planaria The various species of planaria are ..."

10. A Laboratory Manual for Elementary Zoölogy by Libbie Henrietta Hyman (1919)
"Take several planaria and cut them up into pieces of various shapes and sizes. ... Is any piece of planaria capable of regenerating a whole worm? ..."

11. Annals and Magazine of Natural History by William Jardine (1845)
"planaria fusca, Penn. Brit. Zool. iv. 68. Fasciola nigra, Mull. Verm. i. ii. 54. ... planaria fusca, Pallas, Templeton in Mag. N. Hist. ix. 239. ..."

12. Journal of the Royal Microscopical Society by Royal Microscopical Society, London (1878)
"Preservation of planaria.—Dr. Arnold Lang, of Bern, whilst staying at the zoological station at Naples this year was constantly occupied in the endeavour to ..."

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