triiodothyronine
[trahy-ahy-oh-doh-
thahy
-r
uh
-neen, -ahy-od-oh-]
/ˌtraɪ aɪˌoʊ doʊˈθaɪ rəˌnin, -aɪˌɒd oʊ-/
noun
1.
Biochemistry.
a thyroid hormone, C
15
H
12
I
3
NO
4
, similar to thyroxine but several times more potent.
2.
Pharmacology.
a preparation of this hormone, used in treating hypothyroidism.
3
.
Abbreviation:
T.
Origin
1950-55;
tri-
+
iodo-
+
thyronine
(perhaps derivative, with
-one
, of
thyroxine
)
British Dictionary definitions for
triiodothyronine
triiodothyronine
/
ˌtraɪaɪˌəʊdəʊˈθaɪrəˌniːn
/
noun
1.
an amino acid hormone that contains iodine and is secreted by the thyroid gland with thyroxine, to which it has a similar action. Formula: C
15
H
12
I
3
NO
4
Word Origin
C20: from
tri-
+
iodo-
+
thyro-
+
-ine
2