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1. a structure on a plant, often round, that encloses an undeveloped flower or leaf.
2. something resembling the bud of a plant, especially a protuberance in the embryo from which an organ or part develops.
end bud the remnant of the embryonic primitive knot, from which arises the caudal part of the trunk.
limb bud one of the four lateral swellings appearing in vertebrate embryos, which develop into the two pairs of limbs.
the primordium of the caudal appendage.
taste b's end organs of the gustatory nerve containing the receptor surfaces for the sense of taste.
ureteric bud a dorsal outgrowth of the mesonephric duct near its entry into the cloaca; it is the primordium of the ureter, renal pelvis, calices, and collecting tubules of the kidneys.
bud of urethra bulb of urethra.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
an ectodermally covered mesenchymal outgrowth on the embryonic flank giving rise to either the forelimb or hindlimb.
Farlex Partner Medical Dictionary © Farlex 2012
limb bud(lim bŭd)
An ectodermally covered mesenchymal outgrowth from the embryonic trunk giving rise to either the upper limb or lower limb.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012