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a class comprising seed plants that produce an embryo with paired cotyledons and net-veined leaves; divided into 6 (not always well distinguished) subclasses (or superorders), Magnoliidae and Hamamelidae (considered primitive), Caryophyllidae (an early and distinctive offshoot), and 3 more or less advanced groups; includes Dilleniidae, Rosidae, and Asteridae


plant noun (plants and fungi)


(* Dicotyledones may be used in a singular or plural context)

Original source:

Princeton WordNet


Dicotyledonae [class] | Magnoliopsida [class]

Definition references  (+images)


Dicotyledon | dicotyledons | dicots

a grouping formerly used for the flowering plants whose seed typically has two embryonic leaves or cotyledons. There are around 199,350 species within this group. Flowering plants that were not dicotyledons were called monocotyledons, typically having... (36 of 840 words, 2 images)



Magnoliopsida | Apiales [subtype] | Aquifoliales [subtype] | Asterales [subtype] | Austrobaileyales [subtype] | Batales [subtype] | Berberidopsidales [subtype] | Brassicales [subtype] | Buxales [subtype] | ...

A taxonomic class within the division Magnoliophyta -- the dicots. (9 of 11 words)


Columbia Encyclopedia:


division of the plant kingdom consisting of those organisms commonly called the flowering plants, or angiosperms. The angiosperms have leaves, stems, ... (21 of 78 words, pronunciation)


Britannica Encyclopedia:

social class [social differentiation] | class [synonym]

a group of people within a society who possess the same socioeconomic status. Besides being important in social theory, the concept of class as a ... (25 of 895 words, 4 images)


Collins Dictionary:

class | proper class [sense-specific] | in a class of its own [sense-specific] | set [entry-specific, sense-specific] | classable [adjective, derived]

a collection or division of people or things sharing a common characteristic, attribute, quality, or property | a group of persons sharing a similar ... (23 of 888 words, 19 definitions, 19 usage examples, pronunciation)


Macmillan British Dictionary:

class | classes [plural] | Class A/B/C etc | be in a class of your/its own | be in a different class from | not be in the same class as

[countable] one of the groups into which people in a society are divided ... | [countable] a group of students who are taught together: can be ... (25 of 708 words, 11 definitions, 26 usage examples, pronunciation)


class [transitive, often passive, verb] | classed [past tense] | classing [present participle] | classes [3rd-person singular present]

to include someone or something in a particular group because they have similar features or qualities (16 of 73 words, 2 usage examples, pronunciation)

www​.macmillandictionary​.com​/dictionary​/british​/class 40

class [usually before noun, British, informal, adjective]

extremely good (2 of 11 words, 1 usage example, pronunciation)

www​.macmillandictionary​.com​/dictionary​/british​/class 47

Random House Dictionary:

class | class. | the classes [sense-specific] | class up [sense-specific] | form class [grammar, sense-specific] | a classroom [grammar, sense-specific] | classis [ecclesiastical, sense-specific] | class.: classic [ecclesiastical, sense-specific] | class.: classical [ecclesiastical, sense-specific] | ...

a number of persons or things regarded as forming a group by reason of common attributes, characteristics, qualities, or traits; kind; sort. | a group ... (24 of 497 words, 33 definitions, 13 usage examples, pronunciation)


Oxford Dictionary:

class | B | C | one's | the classes | class A drug | class act | a class apart | in a class of its own

a set or category of things having some property or attribute in common and differentiated from others by kind, type, or quality | [biology] : a ... (25 of 389 words, 18 definitions, 16 usage examples, pronunciation)



classify | classified [past tense] | classifying [present participle] | break down [verb, classify] | codify [verb, classify] | digest [verb, classify] | grade [verb, classify] | place [verb, classify] | relegate [verb, classify]

to arrange in classes | to assign (as a document) to a category (12 of 151 words, 2 definitions, 1 usage example, pronunciations)


class [entry 1, often attributive, noun] | elegance [synonym, sense-specific] | caste [synonym, sense-specific] | estate [synonym, sense-specific] | folk [synonym, sense-specific] | gentry [synonym, sense-specific] | order [synonym, sense-specific] | stratum [synonym, sense-specific] | gracelessness [antonym, sense-specific] | ...

a body of students meeting regularly to study the same subject ; the period ... | a group sharing the same economic or social status ; social rank ; ... (28 of 358 words, 6 definitions, 3 usage examples, pronunciation)


New World Dictionary:


a number of people or things grouped together because of certain likenesses or common traits; kind; sort; category | a group of people considered as a ... (25 of 253 words, 14 definitions, 4 usage examples, pronunciation)


American Heritage Dictionary:

class | classed [past tense] | classing [present participle] | classes [3rd-person singular present]

A set, collection, group, or configuration containing members regarded as having certain attributes or traits in common; a kind or category. | A ... (22 of 240 words, 15 definitions, 5 usage examples, pronunciation)


Cambridge Dictionary:

class [entry 1] | the class of '98/'99, etc. | class of '98/'99, etc.

a group of students who are taught together at school, college or university | a period of time in which students are taught something | "the class of ... (26 of 131 words, 3 definitions, 9 usage examples, pronunciations)

dictionary​.cambridge​.org​/dictionary​/british​/class 1

class [entry 2]

a group of people within society who have the same economic and social position (14 of 73 words, 6 usage examples, pronunciations)

dictionary​.cambridge​.org​/dictionary​/british​/class 2

class [entry 3] | be in a class of your own | be in a class by itself/of its own | be in a class by itself its own | be in a class by of its own | be out of your class

a group into which goods, services or people are put according to their standard | [British] in Britain, the standard which someone has reached in ... (24 of 158 words, 5 definitions, 9 usage examples, pronunciations)

dictionary​.cambridge​.org​/dictionary​/british​/class 3

class [entry 4]

the quality of being stylish or fashionable (7 of 18 words, 1 usage example, pronunciations)

dictionary​.cambridge​.org​/dictionary​/british​/class 4

class [entry 5, specialized]

a group of related plants or animals, in the general classification of plants and animals (15 of 24 words, pronunciations)

dictionary​.cambridge​.org​/dictionary​/british​/class 5

class [entry 6]

to consider someone or something to belong to a particular group because of their qualities (15 of 42 words, 2 usage examples, pronunciations)

dictionary​.cambridge​.org​/dictionary​/british​/class 6

class [entry 7, informal]

very good (2 of 12 words, 2 usage examples, pronunciations)

dictionary​.cambridge​.org​/dictionary​/british​/class 7

Encarta Dictionary:

class | classes [plural] | classed [past tense] | classing [present participle]

a group of students or pupils who are taught or study together | a period when students meet to be taught a particular subject | a particular course ... (26 of 316 words, 15 definitions, pronunciation)

encarta​.msn​.com​/dictionary 1861597639​/definition​.html  [offline]

Audio reference

the Free Dictionary:


Audio: British English pronunciation of "Dicotyledones"



Audio: British English pronunciation of "Dicotyledonae"


Page last updated: 2013-06-26

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