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  2. Crossword abbreviations - Wikipedia

    en.wikipedia.org/wiki/Crossword_abbreviations

    The abbreviation is not always a short form of the word used in the clue. For example: "Knight" for N (the symbol used in chess notation) Taking this one stage further, the clue word can hint at the word or words to be abbreviated rather than giving the word itself. For example: "About" for C or CA (for "circa"), or RE.

  3. Crossword - Wikipedia

    en.wikipedia.org/wiki/Crossword

    An American-style 15×15 crossword grid layout. A crossword (or crossword puzzle) is a word game consisting of a grid of black and white squares, into which solvers enter words or phrases ("entries") crossing each other horizontally ("across") and vertically ("down") according to a set of clues. Each white square is typically filled with one ...

  4. Back-and-forth method - Wikipedia

    en.wikipedia.org/wiki/Back-and-forth_method

    (3) Go back to step (1). It still has to be checked that the choice required in step (1) and (2) can actually be made in accordance to the requirements. Using step (1) as an example: If there are already a p and a q in A corresponding to b p and b q in B respectively such that a p < a i < a q and b p < b q, we choose b j in between b p and b q ...

  5. Reciprocating motion - Wikipedia

    en.wikipedia.org/wiki/Reciprocating_motion

    Reciprocating motion, also called reciprocation, is a repetitive up-and-down or back-and-forth linear motion. It is found in a wide range of mechanisms, including reciprocating engines and pumps. The two opposite motions that comprise a single reciprocation cycle are called strokes. [citation needed]

  6. Glossary of genetics and evolutionary biology - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_genetics_and...

    Also called functionalism. The Darwinian view that many or most physiological and behavioral traits of organisms are adaptations that have evolved for specific functions or for specific reasons (as opposed to being byproducts of the evolution of other traits, consequences of biological constraints, or the result of random variation). adaptive radiation The simultaneous or near-simultaneous ...

  7. Taxonomy mnemonic - Wikipedia

    en.wikipedia.org/wiki/Taxonomy_mnemonic

    The hierarchy of scientific classification. Taxonomy mnemonics are used to memorize the scientific classification applied in taxonomy. They are usually constructed with a series of words that begin with the letters KPCOFGS, corresponding to the initials of the primary taxonomic ranks.

  8. Back and Forth - Wikipedia

    en.wikipedia.org/wiki/Back_and_Forth

    Back and Forth or Back and Fourth may refer to: Film and TV. Blackadder: Back & Forth, the last installment in the Blackadder series; Back and Forth, a 1969 film ...

  9. Homing (biology) - Wikipedia

    en.wikipedia.org/wiki/Homing_(biology)

    Homing abilities can be used to find the way back to home in a migration. It is often used in reference to going back to a breeding spot seen years before, as in the case of salmon. Homing abilities can also be used to go back to familiar territory when displaced over long distances, such as with the red-bellied newt.