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• platy
  platy

  adjective

  (of an igneous rock) split into thin, flat sheets, often resembling strata, as a result of uneven cooling.
• platy-
  platy-

  a combining form meaning “flat,” “broad,” used in the formation of compound words.

platy

¹ American  

[play-tee] / ˈpleɪ ti /

adjective

platier, platiest

1. (of an igneous rock) split into thin, flat sheets, often resembling strata, as a result of uneven cooling.

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platy ² American  

[plat-ee] / ˈplæt i /

noun

• platy,
  plural
• platys,
  plural
• platies
  plural

1. platyfish.

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platy- ³ American  

Also plat-

1. a combining form meaning “flat,” “broad,” used in the formation of compound words.

   platyhelminth.

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platy ¹ British  

/ ˈpleɪtɪ /

adjective

1. of, relating to, or designating rocks the constituents of which occur in flaky layers

   platy fracture

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platy ² British  

/ ˈplætɪ /

noun

1. any of various small brightly coloured freshwater cyprinodont fishes of the Central American genus Xiphophorus, esp X. maculatus

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platy- ³ British  

combining form

1. indicating something flat

   platyhelminth

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Other Word Forms

Noun Inflected Forms

• platies
  plural
• platy
  plural
• platys
  plural

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Etymology

Origin of platy¹

First recorded in 1525–35; plate ¹ + -y ¹

Origin of platy²

1930–35; by shortening of New Latin Platypoecilus genus name, equivalent to platy- platy- + -poecilus < Greek poikílos mottled

Origin of platy-³

Combining form representing Greek platýs; see flat ¹

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Example Sentences

See Examples For:

platy

The Blue Jays are scheduled to start July 24 at Tampa Bay and platy their home opener five days later against Washington.

From Seattle Times ● Jul. 16, 2020

Foliated textures come from platy minerals forming planes in a rock, while non-foliated metamorphic rocks have no internal fabric.

From Textbooks ● Jan. 1, 2017

Slate is a fine-grained metamorphic rock that exhibits a foliation called slaty cleavage that is the flat orientation of the small platy crystals of mica and chlorite forming perpendicular to the direction of stress.

From Textbooks ● Jan. 1, 2017

Schistosity is a textural description of foliation created by the parallel alignment of platy visible grains.

From Textbooks ● Jan. 1, 2017

Brucite is usually found as platy masses, sometimes of considerable size, which have a perfect cleavage parallel to the surface of the plates.

From Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" by Various

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