Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- adj. Of or designating any of certain small modular bones or cartilages that develop in a tendon or in the capsule of a joint.
- n. A sesamoid bone or cartilage.
Century Dictionary and Cyclopedia
- Having the shape of a grain of sesame: especially applied in anatomy to small independent osseous or cartilaginous bodies occurring in tendinous structures.
- n. In anatomy, a bone developed in the tendon of a muscle at or near a joint; a scleroskel-etal ossification, usually of a nodular shape. The largest sesamoid of the human body is the patella or kneepan. Smaller sesamoids, in pairs, are normally developed in the metacarpophalangeal and metatarso-phalangeal joints of the inner digits (thumb and great toe), and in the black races of men, and many other animals, at these joints of all the digits. Sesamoids may be developed at any joint, as the shoulder-joint of some birds. The so-called navicular bone of the horse's foot is a sesamoid. See cuts under Artiodactyla, hand, hoof, knee-joint, Perisso-dactyla, pisiform, scapholunar, and solidungulate.
Wiktionary
- adj. Resembling a sesame seed in size or shape.
- adj. Of or relating to a sesamoid bone.
- n. anatomy A sesamoid bone or sesamoid cartilage.
GNU Webster's 1913
- adj. Resembling in shape the seeds of sesame.
- adj. (Anat.) Of or pertaining to the sesamoid bones or cartilages; sesamoidal.
- n. (Anat.) A sesamoid bone or cartilage.
WordNet 3.0
- n. any of several small round bones formed in a tendon where it passes over a joint
Etymologies
- Greek sēsamoeidēs, shaped like a sesame seed : sēsamon, sēsamē, sesame; see sesame + -oeidēs, -oid. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“Open Cup semifinal Wednesday, and at some point, apparently fractured the sesamoid bone in his right foot -- the same ailment that required surgery in preseason and prevented him from playing in a league match until July 31.”
The Washington Post: D.C. United's Marc Burch sidelined again
“Even after Ruffian broke the sesamoid bones in her foot 3/8s of a mile into the race, she ran as hard as she could for another fifty yards, breaking the hearts of everyone who saw the race.”
“Uhlaender, who was introduced to skeleton by friend and bobsledder Sara Sprung, finished sixth overall in her rookie World Cup season last year, competing on two broken bones in her foot — a partially fractured talus in her left ankle that wasn't diagnosed for nearly two years and a broken sesamoid near her left toe.”
“Barbaro's cannon bone, sesamoid, and long pastern bone were fractured and he dislocated his ankle joint.”
“If you watch the replays you'll see that when she switched leads to her right front and landed awkwardly under fatigue, she fractured her cannon bone and additionally she fractured her sesamoid.”
“You can see the X-rays on the Web, of bones crisscrossed by dark fracture lines like weathered boulders, and even if you can't name the parts — pastern, cannon, sesamoid — it's obvious that something ghastly happened.”
“Did these changes in dentition precede the development of the modified radial sesamoid bone or were the changes in dentition secondary.”
“John even knew the name of their nose bone, the nasal sesamoid, and he told me some of the many diseases pigs are heir to, scabies and lice and ticks and liver flukes, worms of the kidneys and worms of the lungs, tapeworms, rabies…”
“Since Thor and Zeus are no longer God (Zeus and other Greek gods were prone to metamorphic transformations), we have to find substitutes for the limited capabilities of the ancient gods (ignoring for the moment how complex it would be to redesign the sesamoid into a “thumb”), we need to invoke a new polytheism working under God which is limited, unlike God, and constrained in absurdly arbitrary ways.”
“While the red panda is considered a procyonid, the mainstream view now is that the giant panda is indeed a bear, although it diverged from the main ursid line long enough ago to exhibit some striking differences in addition to the enlarged radial sesamoid, such as chromosome number, skull anatomy, and other traits.”
The Panda's Thumb has Evolved ... Twice! - The Panda's Thumb
Lists
These user-created lists contain the word ‘sesamoid’.
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Adjectival Arcana
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