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[ser-uh-tin, -tahyn] /ˈsɛr ə tɪn, -ˌtaɪn/
late in occurring, developing, or flowering.
Also, serotinous
[si-rot-n-uh s, ser-uh-tahy-nuh s] /sɪˈrɒt n əs, ˌsɛr əˈtaɪ nəs/ (Show IPA)
1590-1600; < Latin sērōtinus, equivalent to sērō (adv.) late + -tinus adj. suffix of time; cf. serein Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for serotinous


(biology) Also serotinal (sɪˈrɒtɪnəl), serotinous. produced, flowering, or developing late in the season
either of two insectivorous bats, Eptesicus serotinus or Vespertilio serotinus: family Vespertilionidae
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
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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
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serotinous in Science
  (sĭ-rŏt'n-əs, sěr'ə-tī'nəs)   
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for serotinous


any of 23 species of vesper bats (family Vespertilionidae). Frequently, the name serotine is used for Old World members of the genus, and brown bat is used for New World species

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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