tetrominon.

/tɛˈtrɒmɪnəʊ/

Etymology: < tetr- (in tetra- comb. form) + -omino (in domino n. 3).

Any of the five distinct planar shapes that can be formed by joining four identical squares by their edges.

ΘΚΠ

the world > relative properties > number > geometry > shape or figure > [noun] > two-dimensional > other

amblygon1570

obliquea1608

triangulate1610

pelecoid1706

leaf1716

oblongitude1739

hexagram1863

polystigm1863

tetragram1863

tetrastigm1863

trigram1882

tetromino1954

tromino1954

tetrabolo1961

Penrose tile1975

1954 Amer. Math. Monthly 61 678 The checker board cannot be covered with 15 L-tetrominoes and one square tetromino.

1961 New Scientist 2 Nov. 316/2 A domino is formed from two adjacent squares: he [sc. Golomb] argues that practical needs and false etymology will justify our calling a square a monomino—whence we have a series monomino, domino, tromino, tetromino.., and Maestro pieces then become pentominoes.

1979 Sci. Amer. Apr. 19/1 It is when we turn to the 4-cell animals (the tetrominoes) that the project really becomes interesting.

This entry has not yet been fully updated (first published 1986; most recently modified version published online March 2018).

单词	tetromino
释义	tetrominon. /tɛˈtrɒmɪnəʊ/ Etymology: < tetr- (in tetra- comb. form) + -omino (in domino n. 3). Any of the five distinct planar shapes that can be formed by joining four identical squares by their edges. ΘΚΠ the world > relative properties > number > geometry > shape or figure > [noun] > two-dimensional > other amblygon1570 obliquea1608 triangulate1610 pelecoid1706 leaf1716 oblongitude1739 hexagram1863 polystigm1863 tetragram1863 tetrastigm1863 trigram1882 tetromino1954 tromino1954 tetrabolo1961 Penrose tile1975 1954 Amer. Math. Monthly 61 678 The checker board cannot be covered with 15 L-tetrominoes and one square tetromino. 1961 New Scientist 2 Nov. 316/2 A domino is formed from two adjacent squares: he [sc. Golomb] argues that practical needs and false etymology will justify our calling a square a monomino—whence we have a series monomino, domino, tromino, tetromino.., and Maestro pieces then become pentominoes. 1979 Sci. Amer. Apr. 19/1 It is when we turn to the 4-cell animals (the tetrominoes) that the project really becomes interesting. This entry has not yet been fully updated (first published 1986; most recently modified version published online March 2018). < n.1954
随便看	pargets pargetted pargetting pargettings pargety pargework pargeworker parging pargings pargo pargos pargyline pargylines parhedral parhelia parheliacal parheliacal ring parhelic parhelic circle parhelion parhelions parhidrosis parhomologous parhomology parhypate