a number that, when multiplied by itself some number of times, equals a given number
root
Verb
take root and begin to grow
root
Verb
cause to take roots
root
Verb
become settled or established and stable in one's residence or life style
root
Verb
dig with the snout
root
Verb
plant by the roots
root
Verb
come into existence, originate
ramus
Noun
the posterior part of the mandible that is more or less vertical
raphe
Noun
a ridge that forms a seam between two parts
red marrow
Noun
bone marrow of children and some adult bones that is required for the formation of red blood cells
rhaphe
Noun
a ridge that forms a seam between two parts
root canal
Noun
the passage in the root of a tooth through which its nerve and blood vessels enter the pulp cavity
red bone marrow
Noun
bone marrow of children and some adult bones that is required for the formation of red blood cells
receptor
Noun
an organ having nerve endings (in the skin or viscera or eye or ear or nose or mouth) that respond to stimulation
receptor
Noun
a cellular structure that is postulated to exist in order to mediate between a chemical agent that acts on nervous tissue and the physiological response
round bone
Noun
bones that are round in shape
rima oris
Noun
the opening through which food is taken in and vocalizations emerge
right coronary artery
Noun
arises from the right aortic sinus
rectus lateralis
Noun
the ocular muscle whose contraction turns the eyeball outward
rectus
Noun
any of various straight muscles
round window
Noun
fenestra leading into the cochlea
rectus inferior
Noun
the ocular muscle whose contraction turns the eyeball down and medially
rectus medialis
Noun
the ocular muscle whose contraction turns the eyeball medially
rectus superior
Noun
the ocular muscle whose contraction turns the eyeball upward and medially
radial artery
Noun
branch of the brachial artery beginning below the elbow and extending down the forearm around the wrist and into the palm
roof of the mouth
Noun
the upper surface of the mouth that separates the oral and nasal cavities
rectal vein
Noun
any of several veins draining the walls of the anal canal and rectum
right gastric artery
Noun
a branch of the hepatic artery that supplies the pyloric portion of the stomach on the lesser curvature
rectal artery
Noun
one of the arteries supplying the rectal area
renal artery
Noun
an artery originating from the abdominal aorta and supplying the kidneys, adrenal glands, and ureters
right gastric vein
Noun
receives veins from the upper surfaces of the stomach and empties into the portal vein
radial vein
Noun
superficial veins ascending the radial side of the forearm
renal vein
Noun
veins that accompany renal arteries
retromandibular vein
Noun
posterior branch of the facial vein
right ventricle
Noun
the chamber on the right side of the heart that receives venous blood from the right atrium and pumps it into the pulmonary trunk
right atrium
Noun
the right upper chamber of the heart that receives blood from the venae cavae and coronary sinus
recombinant human insulin
Noun
a form of insulin (trade name Humulin) made from recombinant DNA that is identical to human insulin
relaxin
Noun
hormone secreted by the corpus luteum during the last days of pregnancy
releasing hormone
Noun
any of several hormones produced in the hypothalamus and carried by a vein to the anterior pituitary gland where they stimulate the release of anterior pituitary hormones
releasing hormone
Noun
a substance produced by the hypothalamus that is capable of accelerating the secretion of a given hormone by the anterior pituitary gland
releasing factor
Noun
any of several hormones produced in the hypothalamus and carried by a vein to the anterior pituitary gland where they stimulate the release of anterior pituitary hormones
releasing factor
Noun
a substance produced by the hypothalamus that is capable of accelerating the secretion of a given hormone by the anterior pituitary gland
retina
Noun
the innermost light-sensitive membrane covering the back wall of the eyeball
recessive allele
Noun
an allele that produces its characteristic phenotype only when its paired allele is identical
recessive gene
Noun
gene that produces its characteristic phenotype only when its allele is identical
regulatory gene
Noun
a gene that produces a repressor substance that inhibits an operator gene
regulator gene
Noun
a gene that produces a repressor substance that inhibits an operator gene
repressor gene
Noun
gene that prevents a nonallele from being transcribed
reticuloendothelial system
Noun
a widely distributed system consisting of all the cells able to ingest bacteria or colloidal particles etc, except for certain white blood cells