Dictionary
1thyroid
adjective thy·roid \ˈthī-ˌrȯid\
Definition of THYROID
1
a : of, relating to, or being the thyroid gland b : suggestive of a disordered thyroid <a thyroid personality>
2
: of, relating to, or being the chief cartilage of the larynx
See thyroid defined for kids Variants of THYROID
thy·roid also thy·roi·dal \thī-ˈrȯi-dəl\
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Origin of THYROID
New Latin thyroides, from Greek thyreoeidēs shield-shaped, thyroid, from thyreos shield shaped like a door, from thyra door — more at door
First Known Use: circa 1741
Rhymes with THYROID
android, avoid, chancroid, colloid, conoid, crinoid, cuboid, cycloid, deltoid, dendroid, devoid, discoid, factoid, fibroid, fungoid, ganoid, globoid, hydroid, hypnoid, keloid, mastoid, mucoid, ovoid, prismoid, pygmoid, rhizoid, rhomboid, schizoid, scombroid, sigmoid, spheroid, steroid, styloid, tabloid, thalloid, toroid, toxoid, trochoid, typhoid, Veddoid, viroid
2thyroid
noun
medical : a small gland in the neck that affects growth
Full Definition of THYROID
1
: a large bilobed endocrine gland of vertebrates lying at the anterior base of the neck and producing especially the hormones thyroxine and triiodothyronine
2
: a preparation of the thyroid gland of various domestic animals used in treating thyroid disorders
See thyroid defined for English-language learners
First Known Use of THYROID
1787
THYROID Defined for Kids
thyroid
noun thy·roid \ˈthī-ˌrȯid\
Definition of THYROID for Kids
: a gland at the base of the neck that produces hormones which affect growth, development, and the rate at which the body uses energy
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