(chemistry) A structural element of a molecule consisting of an unbranched sequence of atoms or simple groups, especially such a sequence of methylene groups in a aliphatic compound

(chiefly attributive) A bolt action firearm in which the bolt is pulled straight back, without the need for turning.

Used other than figuratively or idiomatically: see not, see, straight. / (figuratively, colloquial) To be unable to think clearly.

plural of straight-pull

(colloquial) Actual; unambiguous; plain, with no bones about it. / Describing an alcoholic drink which has been served straight up.

Alternative form of straight up

(mathematics, geometry) An angle that is equal to 180° (pi radians or two right angles).

Misspelling of dire straits.

A man who perceives himself as straight while still engaging in same-sex sexual behavior. / The practice of same-sex sexual behavior involving at least one man who perceives himself as heterosexual.

A display of pride in one's heterosexuality (as a reaction to gay pride movements).