| allopatric |
living in different geographic areas or in isolation, used esp. in reference to closely related species or to different populations of a single species. [2 definitions] |
| allophone |
in phonetics, any of the variants of a phoneme. |
| allosaurus |
any of various large meat-eating dinosaurs of the Jurassic and Cretaceous periods. |
| allot |
to designate (an amount) to be used or given out. [2 definitions] |
| allotment |
the act of allotting or something that is allotted; appropriation or share. [2 definitions] |
| allotrope |
one of several forms in which a chemical element may exist. |
| allotropic |
pertaining to or having the property of allotropy. |
| allotropy |
the existence of some chemical elements in more than one structural form. |
| allottee |
one who receives an allotment. |
| all-out |
using every resource or means available. |
| allover |
covering, or repeated over, an entire surface. |
| all over |
in every part of something; everywhere. |
| all over with |
completely finished; over. |
| allow |
to permit; let; [5 definitions] |
| allowable |
capable of being allowed; permissible. |
| allowance |
that which is allowed. [3 definitions] |
| allowedly |
admittedly. |
| allow for |
to take into consideration; make provision for. |
| alloy |
a combined form of two or more metals, or of a metal with a nonmetal, sometimes using an inferior ingredient with a more costly one. [5 definitions] |
| all-points |
sent out in all directions or to all receivers wherever they happen to be. |
| all-purpose |
useful for many purposes; versatile. |