Is-

Webster's Dictionary of the English Language

·- ·see Iso-.

II. Is- ·- Applied to certain compounds having the same composition but different properties; as in isocyanic.

III. Is- ·- A prefix or combining form, indicating identity, or equality; the same numerical value; as in isopod, isomorphous, isochromatic.

IV. Is- ·- Applied to compounds of certain isomeric series in whose structure one carbon atom, at least, is connected with three other carbon atoms;

— contrasted with neo- and normal; as in isoparaffine; isopentane.

Related Words

Is
IS(Ἴς, Herod. i; 179), a town of Mesopotamia, eight days' journey N. of Babylon, situated, according...

Dictionary of Greek and Roman Geography
is
is, ĕa, id (m. eis, C. I. L. 1, 198; n. it, ib. 5, 875 al., and freq. in MSS. of Plaut.), gen. ējus ...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
is
is ea, id, gen.ēius (sometimes monosyl. in poetry), dat.ēī (rarely eī or monosyl. ei), pron.demonst...

An Elementary Latin Dictionary
Is
·vi The third person singular of the substantive verb be, in the indicative mood, present tense; as,...

Webster's Dictionary of the English Language
‘T is
·- A common contraction of it is. ...

Webster's Dictionary of the English Language
the jig is up
i. e. the game is up; it is all over with me. The time was when I could cut pigeon wings, and perfo...

Dictionary of American Words And Phrases by John Russell Bartlett.
coming! so is christmas
Said of a person who has long been called, and at length answers, Coming! ...

Dictionary of The Vulgar Tongue by Francis Grose
pauler, that is a
A closer or stopper; an unanswerable or puzzling decision. ...

The Sailor's Word-Book
what ship is that?
A question often put when a jaw-breaking word has been intrusively uttered by savants. ...

The Sailor's Word-Book
the crack, or all the crack. the fashionable theme, the go. the crack lay, of late is used, in the cant language, to signify the art and mystery of house-breaking.
Crust, sea biscuit, or ammunition loaf; also the backside. Farting crackers; breeches. ...

Dictionary of The Vulgar Tongue by Francis Grose
finish. the finish; a small coffee-house in coven garden, market, opposite russel-street, open very early in the morning, and therefore resorted to by debauchees shut out of every other house: it is also called carpenter's coffee- house.
Introducing a story by head and shoulders. A man wanting to tell a particular story, said to the com...

Dictionary of The Vulgar Tongue by Francis Grose