[ ser-uh-tin, -tahyn ]
/ ˈsɛr ə tɪn, -ˌtaɪn /


late in occurring, developing, or flowering.

Nearby words

  1. serositis,
  2. serosity,
  3. serosynovitis,
  4. serotherapy,
  5. serotinal,
  6. serotinous,
  7. serotonergic,
  8. serotonin,
  9. serotype,
  10. serous

Also se·rot·i·nous [si-rot-n-uh s, ser-uh-tahy-nuh s] /sɪˈrɒt n əs, ˌsɛr əˈtaɪ nəs/.

Origin of serotine

1590–1600; < Latin sērōtinus, equivalent to sērō (adv.) late + -tinus adj. suffix of time; cf. serein Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for serotinous

British Dictionary definitions for serotinous


/ (ˈsɛrəˌtaɪn) /


Also: serotinal (sɪˈrɒtɪnəl), serotinous biology produced, flowering, or developing late in the season


either of two insectivorous bats, Eptesicus serotinus or Vespertilio serotinus: family Vespertilionidae

Word Origin for serotine

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 serotinous



"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."

Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for serotinous


[ sĭ-rŏtn-əs, sĕr′ə-tīnəs ]

Late in developing, opening, or blooming. For example, serotinous pine cones may persist unopened on the tree for years and only burst open during a forest fire. Serotinous flowers on trees develop only after the tree has produced leaves.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.