quadruplet

n.

四组，四胞胎中之一；

复数：quadruplets

Triplet and quadruplet pregnancies and management.
Direct synthesis of cascaded quadruplet (CQ) filters
Design of microstrip quadruplet filters with source-load coupling
An Expanded Genetic Code with a Functional Quadruplet Codon
Summertime quadruplet heating pattern in the subtropics and the associated atmospheric circulation
Outcome of twin, triplet, and quadruplet in vitro fertilization pregnancies: the Norfolk experience
The modified quasi-chemical model: Part IV. Two-sublattice quadruplet approximation
Selective first-trimester termination in octuplet and quadruplet pregnancies: clinical and ethical issues.
Accurate synthesis of inline prototype filters using cascadedtriplet and quadruplet sections
Maternal morbidity and obstetric complications in triplet pregnancies and quadruplet and higher-order multiple pregnancies