bud

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bud

 [bud]
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.
tail bud
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.

bud

(bŭd),
1. An outgrowth that resembles the bud of a plant, usually pluripotential, and capable of differentiating and growing into a definitive structure.
See also: gemmation.
2. To give rise to such an outgrowth.
See also: gemmation.
3. A small outgrowth from a parent cell; a form of asexual reproduction.

bud

(bud)
1. a structure on a plant, often round, that encloses an undeveloped flower or leaf.
2. any small part of the embryo or adult metazoon more or less resembling the bud of a plant and presumed to have potential for growth and differentiation.

end bud  caudal eminence.
limb bud  a swelling on the trunk of an embryo that becomes a limb.
periosteal bud  vascular connective tissue from the periosteum growing through apertures in the periosteal bone collar into the cartilage matrix of the primary center of ossification.
tail bud 
1. in animals having a tail, the primordium that forms it.
taste bud  one of the end organs of the gustatory nerve containing the receptor surfaces for the sense of taste.
ureteric bud  an outgrowth of the mesonephric duct giving rise to all but the nephrons of the permanent kidney.

bud

(bŭd)
n.
1. Botany
a. A small protuberance on a stem or branch, sometimes enclosed in protective scales and containing an undeveloped leaf, flower, or leafy shoot.
b. The stage or condition of having buds: branches in full bud.
2. Biology
a. An asexual reproductive structure, as in yeast or a hydra, that consists of an outgrowth capable of developing into a new individual.
b. A small, rounded organic part, such as a taste bud, that resembles a plant bud.
v. budded, budding, buds
v.intr.
1. To put forth or produce buds: a plant that buds in early spring.
2. To reproduce asexually by forming a bud.

bud′der n.

bud

Etymology: ME, budde
any small outgrowth that is the beginning stage of a living structure, as a limb bud from which an upper or lower limb develops.

bud

Botany
A small swelling or projection on a plant, from which a shoot, cluster of leaves or flowers develop; a rudimentary, undeveloped shoot, leaf or flower.

Drug slang
A regional term for marijuana.

Embryology
See Syncytial bud.

bud

(bŭd)
1. An outgrowth that resembles the bud of a plant, usually pluripotential, and capable of differentiating and growing into a definitive structure.
2. To give rise to such an outgrowth.
See also: gemmation
3. A small outgrowth from a parent cell; a form of asexual reproduction.

bud

an undeveloped embryonic shoot in a plant containing a meristematic area (see MERISTEM) for cell division, surrounded by leaf primordia (immature leaves) with often an outer protective layer of scales formed from modified leaves. The tip of a twig usually carries a terminal bud, while leaves generally have a lateral bud in their AXILS.

bud

a structure 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 tail and caudal part of the trunk.
horn bud
bilateral cranial protuberances, destined to develop to a fighting horn or antler stage.
limb bud
one of the four lateral swellings appearing in vertebrate embryos, which develop into the two pairs of limbs.
tail bud
1. the primordium of the caudal appendage.
2. end bud.
taste b's
end organs of the gustatory nerve containing the receptor surfaces for the sense of taste.
ureteric bud
an outgrowth of the mesonephric duct giving rise to all but the nephrons of the permanent kidney.
bud of urethra
bulb of urethra.