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n. pl. max·il·lae (măk-sĭl′ē) or max·il·las
1. Anatomy Either of a pair of bones of the human skull fusing in the midline and forming the upper jaw.
2. A homologous bone of the skull in other vertebrates.
3. Either of two laterally moving appendages situated behind the mandibles in insects and most other arthropods.

[Latin, jawbone.]


Two bones forming the upper jaw.
References in classic literature ?
yet all these organs, serving for such different purposes, are formed by infinitely numerous modifications of an upper lip, mandibles, and two pairs of maxillae.
So with the mouths of insects, we have only to suppose that their common progenitor had an upper lip, mandibles, and two pair of maxillae, these parts being perhaps very simple in form; and then natural selection will account for the infinite diversity in structure and function of the mouths of insects.
On its first arrival it appeared very thirsty, and with exserted maxillae drank eagerly of drops of water, this same circumstance has been observed by Strack: may it not be in consequence of the little insect having passed through a dry and rarefied atmosphere?
First maxillae are modified into sucking disks and the rim was supported with 41-42 rods which was overlapping small sclerites.
The zygomatic implant, originated and developed by Dr PI Branemark, has been used as posterior anchorage for implant-supported prostheses in patients with atrophic maxillae since 1990.
2007) Short implants placed one-stage in maxillae and mandibles: a retrospective clinical study with 1 to 9 yrs of follow up.
These include a left ilium, three distal humeri, three incomplete maxillae, and a fragmentary right squamosal described by BAEZ (1987; MACN-RN 160) as coming from the Late Cretaceous (Campanian-Maastrichtian) Los Alamitos Formation, at Los Alamitos Ranch, RIO Negro province, Argentina.
Numerous color photographs illustrate treatment planning and implant positioning, soft tissue management, autogenous bone grafts, reconstruction of craniofacial function, and zygomatic implants as a surgical alternative for atrophic maxillae.
Maxillae with ca 150 ventral cuspules at base of inner angle, anterior surface with three rows of 10 horizontal spines and a group of plumose hairs (Fig.
95 kyr BP in Las Juntas (28[degrees] 06' 36"S, 65[degrees] 53' 54"W, 1562 m, Ambato Department, Catamarca Province), consisting of 16 maxillae and 18 mandibles.
In both hyperextension (5) and an inferior vertical strain (6) there is lateral constriction and elevation of the maxillae.