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red spruce


a. Running or flowing outward.
b. Marked by an outward flow of current.
2. Botany
a. Having a single, undivided trunk with lateral branches, as in spruce trees.
b. Extending beyond the apex of a leaf, as a midrib or vein.

[Latin excurrēns, excurrent-, present participle of excurrere, to run out; see excursion.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. (Zoology) zoology having an outward flow, as certain pores in sponges, ducts, etc
2. (Botany) botany
a. (of veins) extending beyond the margin of the leaf
b. having an undivided main stem or trunk, as the spruce and other conifers
3. flowing or running in an outward direction
[C19: from Latin excurrere to run forth; see excursion]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ɪkˈskɜr ənt, -ˈskʌr-)

1. running out or forth.
2. giving passage outward: the excurrent canal of certain sponges.
3. Bot.
a. having the axis prolonged so as to form an undivided main stem or trunk, as the stem of the spruce.
b. projecting beyond the apex, as the midrib in certain leaves.
[1595–1605; < Latin excurrent-, s. of excurrēns, present participle of excurrere to run out. See ex-1, current]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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References in periodicals archive ?
Nevertheless ascidians can usually be distinguished from other invertebrates by the presence and form of incurrent and excurrent siphons.
These species all share, besides the laminar division, open primary areoles, with noncostal areoles including two or more excurrent veinlets, and sori in a terminal position on the veinlets.
In these taxa, the male inserts the excurrent siphon into the incurrent siphon of the female before releasing sperm, resulting in internal fertilization.
GPxs have a particularly important role, as several GPx proteins reside in the spermatozoa plasma membrane, and are found in close physical proximity to spermatozoa as they transit through the excurrent duct system.
Bunick et al., "Estrogen receptor (a and [beta]) expression in the excurrent ducts of the adult male rat reproductive tract," Journal of Andrology, vol.
Samples of spermatozoa and eggs were taken using pipettes positioned directly above the excurrent siphon of spawning clams and were immediately examined.
Longer abstinence intervals reward men with poor sperm production, because sperm accumulate in the excurrent ducts for 7 days or more of sexual abstinence; and otherwise penalize men with good sperm production, because after 3 days or less of abstinence, their excurrent ducts are probably full (1).
We have presented the proportion covering the aerial parts of tree species respectively as excurrent crown and decurrent crown for Common Cypresses and old Rubber trees [9].
For unusual presentation in inguinal part of excurrent ductal system as a primary representative site and tuberculosis of the same presenting with suppuration in this region which is not reported in the literature.
Epididymis is the basic segment of the excurrent duct system in the reproductive tract of male goat where maturation and storage of spermatozoa occur under androgenic control (Robaire et al., 2006).
The Wabash pigtoe releases small pelagic conglutinates, while the monkeyface displays a modified excurrent aperture that acts as a lure (Crownhart et al., 2006; Barnhart et al., 2008).
The bivalves apparently do not benefit from the water current created by the host, because adults are usually not close to the incurrent or excurrent flow and because they are in very different positions in the host (Fig.