[st, sst; spelling pronunciation hist] /st, sst; spelling pronunciation hɪst/
(a sibilant exclamation used to attract attention).
variant of before a vowel:
an exclamation used to attract attention or as a warning to be silent
exclamation commanding silence, attested from 1610s; probably so chosen because the sound is both easy to hear and suddenly silent.
Variant of histo-.
history: Hist! Goodbye!
[his-tah-droot] /hɪs tɑˈdrut/ noun 1. a labor federation in Israel, founded in 1920.
- Histalog test
Histalog test His·ta·log test (hĭs’tə-lôg’) n. A test for measuring maximal production of gastric acidity or anacidity using betazole hydrochloride.
[his-tuh-meen, -min] /ˈhɪs təˌmin, -mɪn/ noun 1. Biochemistry, Physiology. a heterocyclic amine, C 5 H 9 N 3 , released by mast cells when tissue is injured or in allergic and inflammatory reactions, causing dilation of small blood vessels and smooth muscle contraction. 2. Pharmacology. a commercial form of this compound, obtained from and used […]
[hi-stam-uh-neys, -neyz] /hɪˈstæm əˌneɪs, -ˌneɪz/ noun, Biochemistry, Pharmacology. 1. an enzyme that catalyzes the decomposition of , used in treating allergies. /hɪˈstæmɪˌneɪs/ noun 1. an enzyme, occurring in the digestive system, that inactivates histamine by removal of its amino group Also called diamine oxidase histaminase his·tam·i·nase (hĭ-stām’ə-nās’, -nāz’, hĭs’tə-mə-) n. An enzyme that inactivates histamine […]