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Intra- :: Intra- () A prefix signifying in, within, interior; as, intraocular, within the eyeball; intramarginal..

Para- :: Para- () A prefix denoting: (a) Likeness, similarity, or connection, or that the substance resembles, but is distinct from, that to the name of which it is prefixed; as paraldehyde, paraconine, etc.; also, an isomeric modification. (b) Specifically: (Organ. Chem.) That two groups or radicals substituted in the benzene nucleus are opposite, or in the respective positions 1 and 4; 2 and 5; or 3 and 6, as paraxylene; paroxybenzoic acid. Cf. Ortho-, and Meta-. Also used adjectively..

Ir- :: Ir- () A form of the prefix in-. See In-.

Hyper- :: Hyper- () A prefix signifying over, above; as, hyperphysical, hyperthyrion; also, above measure, abnormally great, excessive; as, hyperaemia, hyperbola, hypercritical, hypersecretion..

Octa- :: Octa- () A prefix meaning eight. See Octo-.

Tri- :: Tri- () A prefix meaning three, thrice, threefold; as in tricolored, tridentate..

Tetra- :: Tetra- () A combining form or prefix signifying four, as in tetrabasic, tetrapetalous..

Ad- :: Ad- () As a prefix ad- assumes the forms ac-, af-, ag-, al-, an-, ap-, ar-, as-, at-, assimilating the d with the first letter of the word to which ad- is prefixed. It remains unchanged before vowels, and before d, h, j, m, v. Examples: adduce, adhere, adjacent, admit, advent, accord, affect, aggregate, allude, annex, appear, etc. It becomes ac- before qu, as in acquiesce..

Com- :: Com- () A prefix from the Latin preposition cum, signifying with, together, in conjunction, very, etc. It is used in the form com- before b, m, p, and sometimes f, and by assimilation becomes col- before l, cor- before r, and con- before any consonant except b, h, l, m, p, r, and w. Before a vowel com- becomes co-; also before h, w, and sometimes before other consonants..

Magneto- :: Magneto- () A prefix meaning pertaining to, produced by, or in some way connected with, magnetism..

To- :: To- (prep.) An obsolete intensive prefix used in the formation of compound verbs; as in to-beat, to-break, to-hew, to-rend, to-tear. See these words in the Vocabulary. See the Note on All to, or All-to, under All, adv..

Dys- :: Dys- () An inseparable prefix, fr. the Greek / hard, ill, and signifying ill, bad, hard, difficult, and the like; cf. the prefixes, Skr. dus-, Goth. tuz-, OHG. zur-, G. zer-, AS. to-, Icel. tor-, Ir. do-..

Privative :: Privative (a.) Implying privation or negation; giving a negative force to a word; as, alpha privative; privative particles; -- applied to such prefixes and suffixes as a- (Gr. /), un-, non-, -less..

Prefixed :: Prefixed (imp. & p. p.) of Prefi.

Bin- :: Bin- () A euphonic form of the prefix Bi-.

Im- :: Im- () A form of the prefix in- not, and in- in. See In-. Im- also occurs in composition with some words not of Latin origin; as, imbank, imbitter..

Fangled :: Fangled (a.) New made; hence, gaudy; showy; vainly decorated. [Obs., except with the prefix new.] See Newfangled..

Mistress :: Mistress (n.) A title of courtesy formerly prefixed to the name of a woman, married or unmarried, but now superseded by the contracted forms, Mrs., for a married, and Miss, for an unmarried, woman..

Prefix :: Prefix (v. t.) To set or appoint beforehand; to settle or establish antecedently.

Iod- :: Iod- () A prefix, or combining from, indicating iodine as an ingredient; as, iodoform..

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