| hammerhead shark | | |
| n. (animal) | 1. hammerhead, hammerhead shark | medium-sized live-bearing shark with eyes at either end of a flattened hammer-shaped head; worldwide in warm waters; can be dangerous. |
| ~ shark | any of numerous elongate mostly marine carnivorous fishes with heterocercal caudal fins and tough skin covered with small toothlike scales. |
| ~ genus sphyrna, sphyrna | type genus of the Sphyrnidae. |
| ~ smooth hammerhead, sphyrna zygaena | fished for the hides and vitamin-rich liver. |
| ~ smalleye hammerhead, sphyrna tudes | fished for the hide and vitamin-rich liver. |
| ~ bonnet shark, bonnethead, shovelhead, sphyrna tiburo | small harmless hammerhead having a spade-shaped head; abundant in bays and estuaries. |
| cross | | |
| n. (artifact) | 1. cross | a wooden structure consisting of an upright post with a transverse piece. |
| ~ structure, construction | a thing constructed; a complex entity constructed of many parts.; "the structure consisted of a series of arches"; "she wore her hair in an amazing construction of whirls and ribbons" |
| n. (attribute) | 2. crisscross, cross, mark | a marking that consists of lines that cross each other. |
| ~ marking | a pattern of marks. |
| n. (artifact) | 3. cross | a representation of the structure on which Jesus was crucified; used as an emblem of Christianity or in heraldry. |
| ~ calvary cross, cross of calvary | a Latin cross set on three steps. |
| ~ celtic cross | a Latin cross with a ring surrounding the intersection. |
| ~ crucifix, rood, rood-tree | representation of the cross on which Jesus died. |
| ~ emblem | special design or visual object representing a quality, type, group, etc.. |
| ~ greek cross | a cross with each of the four arms the same length. |
| ~ jerusalem cross | a cross with equal arms, each terminating in a small crossbar. |
| ~ latin cross | a cross with the lowest arm being longer than the others. |
| ~ cross of lorraine, lorraine cross | a cross with two crossbars, one above and one below the midpoint of the vertical, the lower longer than the upper. |
| ~ maltese cross | a cross with triangular or arrow-shaped arms and the points toward the center. |
| ~ papal cross | a cross with three crossbars. |
| ~ patriarchal cross | a cross with two crossbars. |
| ~ saltire, st. andrew's cross | a cross resembling the letter x, with diagonal bars of equal length. |
| ~ st. anthony's cross, tau cross | cross resembling the Greek letter tau. |
| n. (state) | 4. cross, crown of thorns | any affliction that causes great suffering.; "that is his cross to bear"; "he bears his afflictions like a crown of thorns" |
| ~ affliction | a state of great suffering and distress due to adversity. |
| n. (animal) | 5. cross, crossbreed, hybrid | (genetics) an organism that is the offspring of genetically dissimilar parents or stock; especially offspring produced by breeding plants or animals of different varieties or breeds or species.; "a mule is a cross between a horse and a donkey" |
| ~ organism, being | a living thing that has (or can develop) the ability to act or function independently. |
| ~ dihybrid | a hybrid produced by parents that differ only at two gene loci that have two alleles each. |
| ~ monohybrid | a hybrid produced by crossing parents that are homozygous except for a single gene locus that has two alleles (as in Mendel's experiments with garden peas). |
| ~ genetic science, genetics | the branch of biology that studies heredity and variation in organisms. |
| n. (act) | 6. cross, crossbreeding, crossing, hybridisation, hybridization, hybridizing, interbreeding | (genetics) the act of mixing different species or varieties of animals or plants and thus to produce hybrids. |
| ~ mating, pairing, sexual union, coupling, union, conjugation | the act of pairing a male and female for reproductive purposes.; "the casual couplings of adolescents"; "the mating of some species occurs only in the spring" |
| ~ dihybrid cross | hybridization using two traits with two alleles each. |
| ~ monohybrid cross | hybridization using a single trait with two alleles (as in Mendel's experiments with garden peas). |
| ~ reciprocal cross, reciprocal | hybridization involving a pair of crosses that reverse the sexes associated with each genotype. |
| ~ test-cross, testcross | a cross between an organism whose genotype for a certain trait is unknown and an organism that is homozygous recessive for that trait so the unknown genotype can be determined from that of the offspring. |
| ~ genetic science, genetics | the branch of biology that studies heredity and variation in organisms. |
| v. (motion) | 7. cover, cross, cut across, cut through, get across, get over, pass over, track, traverse | travel across or pass over.; "The caravan covered almost 100 miles each day" |
| ~ tramp | cross on foot.; "We had to tramp the creeks" |
| ~ stride | cover or traverse by taking long steps.; "She strode several miles towards the woods" |
| ~ walk | traverse or cover by walking.; "Walk the tightrope"; "Paul walked the streets of Damascus"; "She walks 3 miles every day" |
| ~ crisscross | cross in a pattern, often random. |
| ~ ford | cross a river where it's shallow. |
| ~ bridge | cross over on a bridge. |
| ~ jaywalk | cross the road at a red light. |
| ~ drive, take | proceed along in a vehicle.; "We drive the turnpike to work" |
| ~ go across, pass, go through | go across or through.; "We passed the point where the police car had parked"; "A terrible thought went through his mind" |
| ~ course | move swiftly through or over.; "ships coursing the Atlantic" |
| ~ hop | traverse as if by a short airplane trip.; "Hop the Pacific Ocean" |
| v. (motion) | 8. cross, intersect | meet at a point. |
| ~ cross | meet and pass.; "the trains crossed" |
| ~ encounter, meet, run across, come across, run into, see | come together.; "I'll probably see you at the meeting"; "How nice to see you again!" |
| v. (social) | 9. baffle, bilk, cross, foil, frustrate, queer, scotch, spoil, thwart | hinder or prevent (the efforts, plans, or desires) of.; "What ultimately frustrated every challenger was Ruth's amazing September surge"; "foil your opponent" |
| ~ disappoint, let down | fail to meet the hopes or expectations of.; "Her boyfriend let her down when he did not propose marriage" |
| ~ foreclose, forestall, preclude, prevent, forbid | keep from happening or arising; make impossible.; "My sense of tact forbids an honest answer"; "Your role in the projects precludes your involvement in the competitive project" |
| ~ dash | destroy or break.; "dashed ambitions and hopes" |
| ~ short-circuit | hamper the progress of; impede.; "short-circuit warm feelings" |
| ~ ruin | destroy or cause to fail.; "This behavior will ruin your chances of winning the election" |
| v. (motion) | 10. cross | fold so as to resemble a cross.; "she crossed her legs" |
| ~ fold, fold up, turn up | bend or lay so that one part covers the other.; "fold up the newspaper"; "turn up your collar" |
| v. (stative) | 11. cross, span, sweep, traverse | to cover or extend over an area or time period.; "Rivers traverse the valley floor"; "The parking lot spans 3 acres"; "The novel spans three centuries" |
| ~ cover, extend, continue | span an interval of distance, space or time.; "The war extended over five years"; "The period covered the turn of the century"; "My land extends over the hills on the horizon"; "This farm covers some 200 acres"; "The Archipelago continues for another 500 miles" |
| v. (motion) | 12. cross | meet and pass.; "the trains crossed" |
| ~ decussate | cross or intersect so as to form a cross.; "this nerve decussates the other"; "the fibers decussate" |
| ~ intersect, cross | meet at a point. |
| v. (creation) | 13. cross | trace a line through or across.; "cross your `t'" |
| ~ write | mark or trace on a surface.; "The artist wrote Chinese characters on a big piece of white paper"; "Russian is written with the Cyrillic alphabet" |
| v. (contact) | 14. cross, crossbreed, hybridise, hybridize, interbreed | breed animals or plants using parents of different races and varieties.; "cross a horse and a donkey"; "Mendel tried crossbreeding"; "these species do not interbreed" |
| ~ breed | cause to procreate (animals).; "She breeds dogs" |
| ~ backcross | mate a hybrid of the first generation with one of its parents. |
| adj. | 15. cross, thwartwise, transversal, transverse | extending or lying across; in a crosswise direction; at right angles to the long axis.; "cross members should be all steel"; "from the transverse hall the stairway ascends gracefully"; "transversal vibrations"; "transverse colon" |
| ~ crosswise | lying or extending across the length of a thing or in a cross direction.; "a crosswise street"; "the crosswise dimension" |
| adj. | 16. bad-tempered, crabbed, crabby, cross, fussy, grouchy, grumpy, ill-tempered | annoyed and irritable. |
| ~ ill-natured | having an irritable and unpleasant disposition. |
| intersect | | |
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