WIKTIONARY

bone marrow

Noun

∙ The fatty vascular tissue that fills the cavities of bones, being the place where new blood cells are produced. anatomy

BABYLON ENGLISH
bone marrow
soft tissue at the center of the bones which produces blood cells

HENGLISH - ADVANCED VERSION
bone marrow
bone marrow
n
1. the fatty network of connective tissue that fills the cavities of bones [syn: marrow]

2. very tender and very nutritious tissue from marrowbones [syn: marrow]

WORDNET 2.0
bone marrow
Noun
1. the fatty network of connective tissue that fills the cavities of bones
(synonym) marrow
(hypernym) connective tissue
(hyponym) red marrow, red bone marrow
(part-holonym) bone, os
2. very tender and very nutritious tissue from marrowbones
(synonym) marrow
(hypernym) dainty, delicacy, goody, kickshaw, treat
(part-holonym) marrowbone

ENGLISH WIKIPEDIA - THE FREE ENCYCLOPEDIA
Bone marrow
Bone marrow is the flexible tissue in the interior of bones. In humans, red blood cells are produced by cores of bone marrow in the heads of long bones in a process known as hematopoiesis. On average, bone marrow constitutes 4% of the total body mass of humans; in an adult having 65 kilograms of mass (143 lbs), bone marrow typically accounts for approximately . The hematopoietic component of bone marrow produces approximately 500 billion blood cells per day, which use the bone marrow vasculature as a conduit to the body's systemic circulation. Bone marrow is also a key component of the lymphatic system, producing the lymphocytes that support the body's immune system.
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