• synonyms


[ser-uh-tin, -tahyn]
  1. late in occurring, developing, or flowering.
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Also se·rot·i·nous [si-rot-n-uh s, ser-uh-tahy-nuh s] /sɪˈrɒt n əs, ˌsɛr əˈtaɪ nəs/.

Origin of serotine1

1590–1600; < Latin sērōtinus, equivalent to sērō (adv.) late + -tinus adj. suffix of time; cf. serein


[ser-uh-tin, -tahyn]
  1. a small Eurasian brown bat, Eptesicus serotinus.
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Origin of serotine2

1765–75; < French sérotine < Latin sērōtina, feminine of sērōtinus serotine1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for serotine

Historical Examples

  • The Serotine makes its appearance in public about sunset, apparently retiring early and flying again in the early morning.

    Animal Life of the British Isles

    Edward Step

  • The Serotine and the Noctule are our two largest Bats, and in the early records they were very much confused.

  • The best known species (Tnia obtusata) has been found in the serotine, in the mouse-colored bat, and in Vespertilio lasiurus.


    T. Spencer Cobbold

British Dictionary definitions for serotine


  1. Also: serotinal (sɪˈrɒtɪnəl), serotinous biology produced, flowering, or developing late in the season
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  1. either of two insectivorous bats, Eptesicus serotinus or Vespertilio serotinus: family Vespertilionidae
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Word Origin

C16: from Latin sērōtinus late, from sērus late; applied to the bats because they fly late in the evening
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for serotine


"late," 1590s, from French sérotine, from Latin serotinus "that which comes late; that which happens in the evening," from sero, adverb of serus "late" (see soiree). Also as a noun, a type of small, brown bat, from 1771. Related: serotinous, in botany (1880) "appearing later in the season than usual."

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Online Etymology Dictionary, © 2010 Douglas Harper