The alt-left.

(law) a legal doctrine that allows a plaintiff to shift the burden of proving causation of her injury to multiple defendants, even though only one of them could have been responsible

Alternative form of alternating caps

A form of capitalization where capital letters are randomly placed throughout the word(s), now used to convey mockery through text messages.

(mathematics) An infinite series in the form of ∑ₙ₌₀ ᪲(-1)ⁿa_n or ∑ₙ₌₀ ᪲(-1)ⁿ⁺¹a_n, where a_n>0 for all n.

plural of alternative investment

(finance) An investment in any asset class other than stocks, bonds, or cash.

(music) A genre of pop music, usually produced by underground performers, characterized by an eclectic range of influences and musically challenging arrangements.

(law) The resolution of a dispute through negotiation, mediation, arbitration, or similar means, as opposed to litigation.

(genetics) A process by which the exons of the RNA produced by transcription of a gene (a primary gene transcript or pre-mRNA) are reconnected in multiple ways during RNA splicing, so as to allow production of multiple forms of protein from one gene.