continuous English
Adjective
( )
Without break, cessation, or interruption; without intervening time.
 a continuous current of electricity
* 1847 , , Ticknor and Fields (1854), page 90:
 he can hear its continuous murmur
Without intervening space; continued; protracted; extended.
 a continuous line of railroad
(botany) Not deviating or varying from uniformity; not interrupted; not joined or articulated.
(analysis, of a function) Such that, for every x'' in the domain, for each small open interval ''D'' about ''f''(''x''), there's an interval containing ''x'' whose image is in ''D .
(mathematics, more generally, of a function) Such that each open set in the range has an open preimage.
 Each continuous function from the real line to the rationals is constant, since the rationals are totally disconnected.
(grammar) Expressing an ongoing action or state.
Usage notes
*
Synonyms
* (without break, cessation, or interruption in time''): constant, continual (''but see usage notes above ), incessant, neverending, ongoing, unbroken, unceasing, unending, uninterrupted
* (without break, cessation, or interruption in space ): connected, unbroken
* See also
Antonyms
* (without break, cessation, or interruption in time ): broken, discontinuous, discrete, intermittent, interrupted
* (without break, cessation, or interruption in space ): broken, disconnected, disjoint, unbroken
* (in mathematical analysis ): discontinuous, stepwise
Derived terms
* continuous brake
* continuous impost
* continuously
* continuousness
(in mathematics)
* continuous distribution
* continuous function
* continuous group
* continuous line illusion
* continuous map
* continuous mapping theorem
* continuous space
* continuous vector bundle
* continuously differentiable function
* uniformly continuous
Related terms
* continuity
* continued
* continuum
See also
* constant
* contiguous
References

perennial English
Adjective
( )
Lasting or remaining active throughout the year, or all the time.
 a perennial stream
(botany, of a plant) Having a life cycle of more than two years. Compare (annual), (biennial).
(figuratively) Continuing without cessation or intermission; perpetual; permanent; unceasing; never failing.
* 1790 ,
 The perennial existence of bodies corporate and their fortunes are things particularly suited to a man who has long viewsâ€¦
(figuratively) Enduring; lasting; timeless.
 His artwork has a perennial beauty.
(figuratively) Recurrent; appearing or recurring again and again.
 Change is a perennial theme in politics.
Derived terms
* perennially
Noun
( Perennial plant)
( en noun)
A perennial plant; a plant that is active throughout the year or survives for more than two growing seasons. Compare (annual), (biennial).
