英语词汇“protheca”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

protheca

/prəʊˈθiːkə/

Zoology and Palaeontology

noun

An enclosing structure or sheath, or a part of one, which is primary in nature or basal in position; especially (a) (in a coral polyp) the theca in its initial or rudimentary form (rare ); (b) (in a foraminiferan of the superfamily Fusulinacea) an unmodified primary wall; (c) (in a graptolite of the order Graptoloidea) the basal part of a theca, attached to the sicula.

Origin

Early 20th century; earliest use found in Science. From pro- + theca.

单词	protheca
释义	protheca /prəʊˈθiːkə/ Zoology and Palaeontology noun An enclosing structure or sheath, or a part of one, which is primary in nature or basal in position; especially (a) (in a coral polyp) the theca in its initial or rudimentary form (rare ); (b) (in a foraminiferan of the superfamily Fusulinacea) an unmodified primary wall; (c) (in a graptolite of the order Graptoloidea) the basal part of a theca, attached to the sicula. Origin Early 20th century; earliest use found in Science. From pro- + theca.
随便看	far-sightedness Far South fart farter farther farthermost farthest farthing farthingale fartlek fart sack Far West f.a.s. FAS fasc. fasces fascia fascial fasciated fasciation fascicle fascicled fascicular fasciculate fasciculation